Remove restriction on keys that can be associated to actions in LPEX

Assigning keyboard shorcuts to Lpex actions does not work for somme key combinations such as c-multiply (ctrl Numpad *) or in the lpex or seu profiles c-V (ctrl-v).

It happens because of conflicting Eclipse key bindings. Lpex provides a way to override for some key combinations but not all.
In the General/Keys preference page, for the key combinations used by default in the different Lpex profiles, LPEX provides commands that are named the same as the LPEX keyboard shortcut identifier.
For instance, looking at the Ctrl-V binding we can see that it is bound to:
Command When
--------- ----------------------
c-v LPEX/vi
Page Down LPEX/emacs
Paste In Dialogs and Windows

By default, when editing RPGLE and other IBM i members, the When is "LPEX/seu" so the general Eclipse Paste is run, not c-v so any action associated to c-v in the LPEX Editor/User Key Actions is not run.
In this particular case, because the c-v command exists in the General/Keys preferences, I can copy it and set "LPEX/seu" as the When. However not all Lpex key identifiers have corresponding commands, for instance c-multiply does not exists. That means we cannot override the key binding when in LPEX/anything and the choice becomes either not associate that key to a LPEX action or remove the conflicting Eclipse binding and loose functionality in other parts of Eclipse (in this example when editing Java).

This RFE is asking to be able to assign all key combinations that have identifiers in LPEX and have them work when in LPEX. One method would be by providing Key commands for all of them, but, as long as it does not delay implementation, other methods that would mean having only one preference page to set Keys are ok.

We have created our own plugin that has new Lpex actions and users want to assign some of these actions to keys and some of the "obvious" key combinations cannot be used.