The APL bar is quite usefun in situations where one cannot (for various reasons) reconfigure a keyboard.

Its usefulnesswould, IMHO, being greatly enhanced by the addition of a user-configurable interface allowing to

• redefine the prefix key
• redefine the mappings.

This should possibly be easier to do in a "user installable" version (i. e. probably a browser extension).

Could something be done in this direction ?