How to filter by suffix in a specific order

[Jose Novo]

Hi,

I'm new in this amazing tw community.

First of all I'm from Spain, and I'm sorry for my english.

Two months ago I started to use tw and now  I'm trying to develop some personalized tw to experiment with the tool.

Now, I'm blocked with a trouble that I think that is trivial, but I'm not been able to find the solution.

The problem is that I've a lot of tiddlers with the same prefix and different suffix. ie:
Exemple - a
Exemple - b
Exemple - c
For - a
For - b
For - c

I can filter it by prefix

<$list filter="[prefix[Example]] />

But I don't now how to filter by suffix in a specific order (ie. Example - b, Example - c, Example -a) if I have a custom field in the tiddler that have the list of tiddlers with b c a values.

I know that if a put in my custom field the complet tiddler titles (prefix + suffix) I can sortby this field, but I'm looking for only put the suffixes.

Could you help me?

Thanks a lot
Jose