I switched to SpaceFM awhile ago, but I think it just remembers your preferences. In SpaceFM you can set them in the context menu like so:
Since SpaceFM is basically an updated, enhanced version of PCmanFM I assume it would be similar.
BTW - You should consider updating to SpaceFM if you like PCmanFM. Check it out here:
http://ignorantguru.github.com/spacefm/
You can also incorporate Bash scripts and create your own GUI commands, it is also nice and plugable.
Hope I was of some help.