LM3900 revision

[RAPTOR7762]

@vanepp

The intention is to allow this

Yes, I think I tried it before, and I find it really cool! Fritzing is the best EDA!

@poetaster I think there is a tutorial posted by Peter about this here:

Part-creation-howto-part9-schematic-subparts

this is a continuation of Here we are going to look at creating parts with schematic subparts. The purpose of schematic subparts are to allow elements of a multi element part (such as a dual op amp or a hex inverter) to move around schematic independently. I will use the 74x125 quad tristate buffer as an example of this. We will look only at the schematic svg and the fzp file as they are the only two files that are affected by this. Note that schematic subparts block the use of buses in the s…