It's simple, you treat everything that you do as an overdub even if you are going to " re-amp " stuff. You can accomplish this with a single external audio device such as with a single Apogee. You play back from one or multiple tracks which are soloed. This will come out the Apogee output. With microphones plugged into the Apogee input, those microphones can be printed to yet a new stereo track in the software. If you are not utilizing external speakers & amplifiers, you may be trying to do what I do? That is to utilize the Neve and/or my API based electronics to recover that classic transistor/transformer sound to a new stereo track. That's what I frequently do for folks when they want me to master tracks that they have recorded at home with their mediocre equipment. Sometimes, I'll even pass through all tracks out of a digital set of files i.e. 24 tracks through the Neve back to the computer. This makes every one of their tracks tailorable with my analog ferrite core inductor equalization & discreet transistorized Operational Amplifiers which can be pushed for a spectacular tonality of sound. This can make any mediocre recording sound like it was literally recorded through the Neve & API. Thankfully, with our computer digital recordings, one can even do this to a multitrack recording with only 1 or 2 old-school boutique preamps. This is because everything will be locked in perfect synchronization. So it might take you 24 passes for each song to make up for the 23 missing channels of the console. Thankfully in this instance at home, time can replace money. You wouldn't want to do this at your local million-dollar studio that is charging you $150 per hour. Of course most of this has to be done with your analog stuff in real time. It can't be rendered out quickly like so much software can do. Of course there are programs such as Pro Tools that don't render anything out quickly since it works in real time only. That's important for some things and mindlessly impossible for other large projects. That's another reason why a lot of us don't stick in or on Pro Tools.
It's all easy. It's all good.
Mx. Remy Ann David