transform list in selection set

I have a list with n entities names - how to transform this list in a selection set?

(setq ss (ssadd))
(foreach ent <list of entity names> (ssadd ent ss))

And for a selection set of n Mtexts, how to put background for each mtext, with factor 1.2 and color - background color?

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- Menu For Today -

- Selection Set -

- Mtext Mask -

- TBD -

- TBD -

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And for a selection set of n Mtexts, how to put background for each mtext, with factor 1.2 and color - background color?

http://lee-mac.com/mask.html

Thanks, Lee!

You're welcome