That should be happening by default (we don't have any code to do it). Windows normally does that anyway (stamps files 'as of' the date/time that copy was Created). Hence we only have an option to re-set it to match Source, not to set it to 'now', because it normally is anyway.
EDIT: don't suppose you have the aforementioned setting to 'Copy from Source' already set (by mistake)?
EDIT2: of course, if your HTPC isn't Windows it may not be happening like Windows would do it...in which case you'd probably need an installable script to try and do it
EDIT: don't suppose you have the aforementioned setting to 'Copy from Source' already set (by mistake)?
EDIT2: of course, if your HTPC isn't Windows it may not be happening like Windows would do it...in which case you'd probably need an installable script to try and do it