Hi question homing qtplasmac

I just make an cnc plasma , and first time i use linux cnc , installed qtplasmac , and i use a single input line for all homing , but i want to square the gantry , its posibile that i use ony one input for all homing switches , and square same time the y axis .
Thanks .
And i have some other issue , i try to configure the parport pin for connection , and i cant get it right i whe i try the floating switch , in hall scope i have signal , from switch , but on UI happens nothing , same with torch on , i try to switch the relay , and doesnt do nothing .
Thanks .