I was referring to the rules for Full

[tidal snow]

I can easily create an extra line in the adv/disadvantage box in the roll dialog. But the stress penalty would be more difficult to code.

[glass drift]

I'd suffice with the advantage option in the roll dialog. One could actually remind players of the stress cost by writing this in brackets after "Full Auto", and not have that part automated.

[tidal snow]

I like your suggestion