Expanding Portal results via Join Table and valuelist

[Lyinggod]

I am very much a novice with FM so any assistance is greatly appreciated. I am using FM 13 to develop a local digital asset manager. I have one portal with a list of keywords connected to a list of assets via a join table. When a keyword (button) is selected, the related ASSETS are displayed in a second portal. On a basic level, this setup works correctly. However, I am trying to expand the ASSETS that are displayed.

Currently, the ASSET portal is filtered using:

global::gCurrent Keyword = Data for Keywords::ID

Given this example 
1   doc1.pdf
1   doc2.pdf
2   doc3.pdf
2   doc4.pdf

If I enter "1" or "2" in global::gCurrent Keyword, then the expected records are displayed (1= doc1 & doc2, 2= doc3 & doc4). However if I enter a list containing 1¶2 then nothing is displayed.

Any suggestions on how this could be resolved would be appreciated.

Thanks in advance for your assistance.

[eos]

Try

not IsEmpty ( FilterValues ( Data for Keywords::ID ; global::gCurrent Keyword ) )

[Lyinggod]

That did it. Thank you very much

Edited October 11, 2015 by Lyinggod