I don't think you can currently do this but it seems the functionality will be added shortly. See this (viz http://forum.pspad.com/read.php?6,35861,page=3#msg-36444 ) (last 2 comments on the page, #29 and #30) ...
-- <http://forum.pspad.com/read.php?2,36533,36693> PSPad freeware editor http://www.pspad.com
