Managing identities without suspending Mutt

[Gregory Heytings]

>> Thank you for your answer!  But this does not answer my question: I 
>> know that it is possible to manage multiple identities that way, and I 
>> was trying to find something more flexible.
>
> You could put the post-the-script stuff in the script output.
>
>    macro index A ':`shell-script-emitting-mutt-commands`<enter>'
>
> Then your shell script can run your menu selection of identity (use 
> /dev/tty for the output here, since stdout will be going back to mutt) 
> and then have it write whatever you like to mutt, for example an 
> instruction to source an identity setup file.
>

Thank you very much for the pointer, I'll try to do that, and indeed I 
think that doing something like the above will do the trick!