Hotkeys: what does it do?
As mentioned, it basically shows a list of keyboard shortcuts with a short explanation. But that's not all.
First of all you need to be able to select which application's keyboard shortcuts you want to see.
Next, it would be nice to order the list in different ways, like on key or on description. You can do that by clicking on the header of the column of your choice. Here's a close-up of that.
The column that is currently sorted on shows a small arrow to indicate asceding or descending order. You can change it.
Searching for a specific description is also something you might want. I even made it possible to filter on the search term, and to quickly go the the next and previous item found.
Menus
Three menus are available.
From the Application menu you can exit the application or modify some application-wide settings:
Currently you can define for which tools this application can show the keydefs, choose the interface language or select the set of keydefs to show when starting up the application.
Choosing Application - Settings - file Locations starts the dialog to set which tools this application can handle. More about this option here.
Choosing Application → Settings → Language starts the language dialog
which has currently two choices: English and Dutch
Choosing Application → Settings → Set Preferred Tool starts another dialog:
here you can choose the set of keydefs to show on startup. Either select from the available options or choose to show the one that was open when you last closed the application ("pick up from where you left off").
Tool Specific
From the Tool Specific menu you can edit specific settings or do some manipulations with the definitions file for the currently selected tool.
If an action is not available for the current tool, the option is greyed out. For the settings a submenu is available:
More about tool specific stuff here
Help
Finally there is the help menu:
Choosing help -> about gives some info about this application:
