Multi-synth patching

Great job on this Patch App! I really appreciate the hard work; it’s a huge time-saver, especially when working with 'no-memory' analog synths.

One piece of feedback: it would be fantastic to have the ability to patch more than one synth at a time. For instance, being able to have the Matriarch, Grandmother, and DFAM all on the same page so I can cross-patch between them