[Dovecot] ot: moving files/dirs from terminal ?

warning, dumb question ahead:

I want to re-arrange, rename & create some sub directories below INBOX in my own mailbox;

if I use 'mc' from terminal to do so, can that cause me grief...?

do I need to ?? re-index explicitly?? afterwards ? how to re-index ?

or is that a really _B_ad idea, and, I should do it through say squirrelmail client ?

thanks for any pointers!

# dovecot --version 2.1.1 INBOX mail path /var/spool/mail/vhosts/dom.tld/voytek@dom.tld