Clear Multiple Patterns...

Hello,

Sorry if this has been discussed somewhere but I was just testing the 1.9 beta with some of the older test songs I made for 1.8 and was wondering if it is possible to clear the selected patterns at once?

clear in terms of deleting/removing them from the sequence?
or keep them in the pattern sequence and just eraze all its data?

clear in therms of erasing all the data in them… =)