R:TW Some modding questions

[XanaviNismoNurb]

Is it possible to edit how quickly units gain chevrons from battles?

Is it possible to edit how likely an impetuous unit will charge without orders?

Is it also possible to create an entirely new attribute (very_highly_trained)?

Is it possible to add new buttons to UI?

The original R:TW experience can be expanded on if more buttons can be added to the UI.

Consider:
More formation buttons.
More character ability buttons - e.g. Principes with the ability to testudo, schiltrom or shield wall. Hoplites with the ability to shield wall, schiltrom or war cry.

Is it also possible to have duplicates of all units? In this case, different versions of the same unit would be recruitable like so;

Hastati (untrained, warcry) -- 1x officer
Hastati (trained, hardy, warcry, schiltrom) -- 2x officers
Hastati (highly_trained, very_hardy, warcry, schiltrom, testudo, shield_wall) -- 3x officers

Is it also possible to enable Skirmish mode for infantry units? For example, a Gaeroas with Skirmish mode on, may be used to replicate guerilla style warfare or a feigned retreat, as automatically retreat from the 1st line of battle to behind the 2nd line.