Blocking some rows of a roster depending on a question

Syntax
#1

I have a roster with fixed set of eight element. Is it possible disable one row of the roster depending on a single-select question outside the roster?
thanks in advance

#2

You can use this pattern to disable a single roster instance with a condition:
(@rowcode == CODE_OF_ROSTER_TO_BE_DISABLED && condition) || (@rowcode != CODE_OF_ROSTER_TO_BE_DISABLED)