ello, @ricardo-barroso, @peterjones, @terry-r and All,
An other S/R could be :
FIND (?-i)RequiredItem.+, \K\d+
REPLACE 0
The search regex means :
First, find a string RequiredItem, with that exact case because of the leading part (?-i)
Then find any NON-zero number of chars ( .+ ) till a comma followed with a space char
Now, forget anything matched so far, due to the \K syntax
And just match a non-zero list of digits ( \d+ ), which come next
Finally, replace that number by 0
Remark : You must do a global S/R, using the Replace All button. Due to the \K syntax a step by step replacement, with the Replace button, would not work !
Best Regards,
guy038