Hi.
When writing expression below:
ch('../../door_location_`stamp(“../stamp_door”,“door_index”,1)`')
I just got a warning for “Bad parameter reference” and the expression didn't work as expect.
So how can I fix this problem or it's just impossible to use stamp expression in ch expression?
Thx in advance!

Try removing the ‘ after the first bracket and the ’ before the final bracket. Cheers!