Module is a kind of universal tool for specifying caches to work with in next module.
Normally are modules working with all caches, but with conditions you can filter them. That's how you can create a map with T5/D5 caches only etc.
If yo want to restrict caches for next module, you have to choose the correct operator to compare and then the correct value.
Normally is used operator anything which means the value is ignored and everything is used. Mathematical operators are clear, but you have to be careful while choosing text or numeric comparison. Text comaprison means you have to put the value between apostrophes ('value').
Database operators IN, NOT IN and BETWEEN work with more than one value it's neccessary put the values between apostrophes and separate them using comma (i.e. IN: 'FTF','STF').
Operator LIKE compares the value with mask which can contain wildcard characters _ and %. As an example we can use searching for caches with FTF tags: '%FTF%'. This will use only caches having FTF in tag value (i.e. coFTF).