record and edit at same time

hi - i have mac osx 10.9.5 and am wondering if it is possible to record one lp, and edit a different one that has been previously recorded, at the same time ? thanks.

Not really. You would have to open the previously recorded project first. You could then File > New and record, and use the Window menu to switch back to the previous project.

But as soon as you played the previous project, the recording would stop.