ignite earlier than 90° CA BTDC

[mamimue]

Hello,

i need to ignite ealier than the 90 CAD BTDC that are possible in the moment (ignition Table Spark advance).
I am aware that this is not usual and could damage the engine.
Is this (90 CAD BTDC) a limit of the firmware or of Tunerstudio?
Can somebody support me to eliminate the limit or is the only way to write wrong triggerwheel settings to the ECU?
Many thanks in advance.

The ECU is a MS3 Pro