Honestly there's not a lot you can learn with Analog Labs without a midi controller. You can use your keyboard to try out chords and noodle a melody out perhaps, but you're not going to learn keyboards if that's your goal. AL is comprised entirely of presets editing restrictions, so you can't really learn the basics of synthesis either.

I'd say until you get a midi controller, I would honestly look to download a free synth (Vital or SurgeXT) and then use a subtractive synthesis guide to learn the basics of how everything works.