You can also record all 4 tracks of tape to the ALBUM (COM) and then resample that to a blank space on one of the tape tracks. The first steps are the same as @yoof detailed, except you record to ALBUM after step 4. Then with your IN marker on the TAPE set at a blank spot, switch back to ALBUM and press REC and PLAY at the same time. Getting volume levels where you want them may take some practice, but like most things it gets easier each time.
Forgetting to mute the input has also ruined a few of my earlier tracks, however if used with caution it can be another tool to boost your volume levels without using DRIVE.