SmartCollections for scenes based on metadata ...

Hi guys,

I have proxies created by Scratch, which already include scene and take numbers as metadata.
Scenes are in the form of:

1-4
1B-3
12-2
31-5
etc. ...

Now I would like to have a library smart collection for every scene number, meaning, everything which starts with let's say for the first scene 1-, 1A-, 1B-, 1C-. I can only make it work that it includes those strings, but then it also includes for example 31-5, which I do not want to include, of course. Is there a workaround for that?

Thanks very much for any ideas,

M