Q1.
Use looping animations from the Art Catalog > Animations, and use the & command.
Q2.
Make sure to place your characters spot before the panning command, for example:
@CHARACTER stands screen center AND CHARACTER is talk_neutral
@pan to zone 2
or
&CHARACTER stands screen center AND CHARACTER is talk_neutral
@pan to zone 2
Q3.
Example:
&CHARACTER is admire_happy THEN CHARACTER is talk_excited_happy
CHARACTER
Wow! I'd love that dress!
Q4.
Type in:
sound SOUNDNAME
If you want it to loop:
music MUSICNAME
Hope this answers your questions!