[RP2.40] Filter

[FFF]

Probably it's to hot:
Class MyVOForm
...
METHOD Print_AboRechnung_univ(cPNO := "" AS STRING) // cPNo is the id of a record to include
//calling a RP report
....
oReport:FilterExpression := i"Person.PNo = '{cPno}' "
...

So far, fine.
Now, i want instead to fill the FilterExpression with a series of cPnos.
I get these from a helper func which returns an array of string values, i.e. PNos.

How do i code this?