# IDA pro: jump back to previous instruction

I'm new with IDA pro and currently running with debugger, I have few questions:

1. How can I jump on previous instruction? Undo the latest instruction ?
2. Is it possible in IDA to examine memory of an executable ? Like it is in Immunity Debugger? Something like this and examine each segment briefly like it is in Immunity Debugger ?
• To jump back to a previous instruction in the disassembly view, just press ESC – Martin Jun 25 '17 at 20:08