formula need it

Good morning, for my trigger i need  the formula to lay at the actual  lay price if  back/lay are within 3 ticks, if not i would like to  offer a lay bet of back+10 ticks.

Thanks

i think i already get it.
r_ticks(lay_price,10)
thanks

Or rather:

IF(g_ticks(back_price, lay_price) <=3, lay_price, r_ticks(back_price, 10))

i did in that way because i like more but dont work. maybe i did bad. see attach

Right, I forgot to close the parenthesis in the formula.

Corrected.