Hijacking/Hacking does not work for me.
I don't get the option to hack the terminal when I am next to it.
Edit:
I am not an expert, but it seems to me that you changed "true" and "false" in fn_addUserActions.sqf:
if(_target getvariable ["A3E_isTerminal",false]) then {
if(!(_target getvariable ["A3E_Terminal_Hacked",false])) then {_return = true;};
};
Shouldn't it be
if(_target getvariable ["A3E_isTerminal",true]) then {
if(!(_target getvariable ["A3E_Terminal_Hacked",false])) then {_return = true;};