Adding parameters to RNI report options

See the following:

For multiple values, either add multiple fields on the form, and to the RLD query (Using logic to AND /OR them, while ignoring blanks).

Or make it a text field that you enter as a comma separated list. and use the the SQL IN operator. This requires you enter the list very specifically.

" WHERE T2.CustID IN (" + T2.Character01 + ") "

And the format of the text field would need to be like:
'ACME123','WID-234'