Menu:

click on the columns - button to bring down the columns menu. Click in the dark blue and it pulls back up.

Columns menu:
(Clicking on a white menu-entry makes it active. Clicking on a red one switches it off.

From left to right:

  1. Map: collapsible list page. Mainly for the Iliad. The Odyssey has a rudimentary map, the Hesiod texts none (yet).
    Pages: three-way switch: showing the sitemap or the latest page chosen or none.
  2. Il - Od - Theo - W+D  lets you switch between resp. Iliad, Odyssey, Hesiod's Theogony and Works & Days. You can select only one at a time.
  3. Greek ⇔ Trans gives 2 columns: one with the above Greek text, the other with the English translation. Either, both or none can be visible. The double arrow switches between them.
  4. explanation - help. Toggles one of those pages, or none. Themata on the map with a red-encircled line number link to items with the same name on the explanation page (only if that page is visible). If the red circles have not appeared, reload the page by clicking on 'explanation' until it is red again.

Click/tap on a linenumber in the Greek or translation text, both textcolumns and, if tap-hold or if the ctrl key is pressed, also the collapsible list will scroll to that linenr. Click/tap a linenumber in the text of one of the "pages" and the greek or translation texts will load and scroll there. Click on a red encircled linenumber in the map and the explanation page (if visible) will scroll to that item.

Click/tap on the "Thematic Structure" header to switch to a page with a proportional view of the structure (size proportional to number of textlines). Click there on the header to go back.

Column resize:

On the right side of the displayed columns, except the rightmost one, a whitish line shows up on mouse hover. You can drag this line left or right and the column widths will be resized accordingly.
On tablets you cannot change the size of the columns.
If you change the number of columns, width is reset to default.

tools Tools menu:

  1. Fontsize sets the fontsize. All sizes on the pages depend on this, so the effect is of a zoom in/out. You can also use browser-zoom of course (ctrl + or -), but fontsize will be remembered on your next visit.
  2. auto: if checked, the fontsize is determined automatically, proportional to the width of the browser-window.
  3. Delete all bookmarks: bm's for all texts & translations are deleted.
  4. Show only selection: toggle the display: bookmarked lines only - all lines. This only works for the Iliad & Odyssey Greek text.
  5. Show notes: display the notepad.
  6. Show alphabet: show a little screen with the correspondences between Latin alphabet and Greek letters, for typing. If your page is displaying 'Archaic Greek font' (menu), this screen will show that font.
  7. Save page state: Normally the page state (which columns and texts are showing, fontsize, list expansion state etc) is saved on exit and reloaded when coming back to the page. Sometimes (mainly on tablets) this does not work. If it's important to save the state, use this menu entry before exiting.
  8. Load page state: Load the page state as it was saved automatically or by hand.
  9. Reset all: wipes all remembered settings and notes, reloads all pages, displays the page like a first visit. If something goes wrong that a page refresh will not cure, try this. Also for fetching updates
  10. Whodunnit: acknowledgements, and my e-mail address.
  11. clear colors: reset the color of the linenumbers in the texts
  12. Editor: An editor for the structure-tree. For now, useful only for the webmaster.
  13. Archaic Greek: change the font of the Greek text to an Archaic font, lose the spacing and the punctuation and print it boustrophedon. This changes direction every hexameter, starting right to left. Of the Iliad or Odyssey, only the book which is currently showing is converted. If the conversion is active, the "show alphabet" menu item will give a chart of the archaic alphabet.

search box and Lookup Lookup menu:
On PC's:
Mouse-select a word or a linenumber in the Greek or English text then if necessary click the selection (or doubleclick a word), it appears in the search box.
On tablets:
Select a word by tap-holding it. Then you can adjust the selection. Tap it again to make it appear in the search box. Sometimes you have to do the selecting twice.
It can also be typed in. For Greek use betacode (see below) or a Greek keyboard. Depending on its language and content, 'Lookup' will then give you the option of :

Betacode:

Clicking on the grey beta-sign in the search box switches the text from Latin alphabet to Greek and v.v. See the 'alphabet' menu item for the correspondences.
If you doubleclick (or doubletap) a Greek word in it, the diacritical marks and uppercase are discarded in the transformation.
The Greek texts here are in Unicode 'Extended Greek', which is polytonic Greek, while for instance Perseus works with 'betacode', an ascii-only lowercase-only transcription of the Greek alphabet. To perform lookups (here or in Perseus), the unicode is translated into betacode with or without diacritics.
For searching with accents, f.i. 'ἄλλα' or 'ἀλλὰ', enter 'a)/lla' resp. 'a)lla\' and click the beta-button. If you are searching with diacritics, all the marks and capitals must be correct or the word will not be found. Searching without diacritical marks ignores all of these and, for instance, finds both forms of αλλα.
Doubleclicking the search box will clear it.
Betacode: uses lowercase-letters only (we use the Perseus-dialect of betacode). 
In this order:
* precedes a letter to be capitalized. If it is used, all the accents except '|' precede the letter, otherwise they follow it.
) smooth breathing, ( rough breathing
/ acute accent, \ grave accent, = circumflex
+ diaeresis
iota subscriptum (always follows the letter)
The choice between 'σ' and 'ς' is made automatically.
Untranslatable characters are kept as they are, illegal combinations rarely produce errors, they give undefined results (garbage in, garbage out). Not all possible legal betacode-combinations have been implemented or tested, but enough to do the Perseus Hesiod and Homer texts without errors.

bookmarks Bookmark menu:

If you click on a line (the text part) without selecting anything, that linenumber will be bookmarked (click again to unmark it): its linenumber becomes red and it shows up in the bookmark selector. Bookmarks are saved in the 'page state' so they show up again on the next visit. (actually, the linenr. of the segment turns red and is bookmarked. Only when you do a word search, the resulting bookmarks are the real linenumbers.

< > : goto previous/next bookmark in current text

: clear bookmarks for this text only

⇓ : Save the list of bookmarks into the notepad (so it can be locally saved).

⇑ : Load a list of linenumbers from the notepad into the bookmarks. It has to have the same format as the saved list.

The Collapsible list

Expand/collapse all at once with the large + and - at the top. Doubleclick these to expand or collapse completely. Exp/col one item by clicking to the right of the text part (it shows '+' if it can expand, '-' if it can collapse).
Click the text part part to scroll both Greek and English text to its start linenumber. The color of the linenumbers belonging to the part you clicked, will toggle to its corresponding color. This can be reset biy clicking again or through the tools-menu.
If a linenumber (in the list) is red encircled, clicking it scrolls the explanation-column (if this column is on screen) to that item.
Holding down the mousebutton > 1 sec. on a linenumber scrolls it to the top, and lets that item be the top in subsequent expansions of the list. Hold down again on the same or on the root item ("The Iliad"), and the root item becomes the top. This feature does not work on tablets.

Notepad:

Enter any text into the notepad, it will be saved to browser storage and reloaded on startup automatically. There are 5 buttons:
clear will clear the notepad, without saving it.
beta will convert to and from Greek alphabet, just as in the searchbox. Either the selected text or, if there is no selection, the whole contents of the notepad.
goto will interpret selected text as a bookmark and load/scroll the text columns accordingly.
send will let you send the text as e-mail.
load/save produces a menu with save: enter a name into the filename box, clicking 'save' will send it to your default download directory, and load: click to select a file on your computer and upload it. It will replace any text present in the pad.
If the notepad is visible, selecting in the textcolumns (and then clicking the selection, in some browsers) enters it in the notepad as well as in the searchbox.
Resize the pad on the bottom-right corner (not IE, not tablets).

CTRL-C,X,V work as usual.

bugs: If the page doesn't load right (e.g. sometimes the scrollbars or some of the content do not show up in one of the columns): try clicking on the frame, or either refreshing the whole page or right-clicking the column and choosing 'reload frame'. If this doesn't help, try menu-item 'reset all'.

On Windows, with any up-to-date browser, things seem to work fine. On OSX things used to work but it's a long time since I tested. Linux I do not know. On Android: Chrome, Firefox and Opera work fine, others I do not know. On my (very old) Ipad nothing works.