No, that isn't possible. But maybe this idea might help: If you don't need all these binds at the same time you could also do the following (this is just an example, I think you'll get the idea):

- create 2 configs "texts.cfg" and "smileys.cfg"
- texts.cfg has:
bind 1 "say You rock!"
bind 2 "say You suck!"
etc. ....
- smileys.cfg has:
bind 1 "say :D"
bind 2 "say :P"
etc. ....
- in your autoexec.cfg place these two binds:
bind F5 "exec texts.cfg"
bind F6 "exec smileys.cfg"

So if you want to post a text like "You rock!" followed by a ":P" you need to press F5, 1, F6, 2.