A few years ago I bought bitcoins and I've kept it in a Multibit 0.5.15 (Mac OSX) wallet. Now I want to either sell thes bitcoins or send it to a different wallet. I already made a transfer but since I can't manually specify a higher fee in this old Multibit app my transfer stays on pending/unconfirmed.
My question is, how do I transfer this money? Is there any way to export either my wallet or transfer my money to another wallet?
Also I have no idea what to do with this pending transaction. I see no way to cancel it in Multibit 0.5.15.
Any help appreciated!