Comment 7 for bug 1571930

Decoupler capacitor case may not be regarded as a distance constraint.
If a "this pin is part of net1, while also the member of net2" function was implemented (this info must be registered somehow both in .sch and netlist), it worked like this:

In case of decouplers,
1 - make a connection between C (capacitor pin) and P (one Vdd pin of the package): net1
2 - select C pin, and click the new "net tie" tool
3 - select the net connecting to (net2). Only from a list of named nets (no "Net-(P3-Pad2)" kinda names interested) like PWR_GND, +3.3V etc. Selecting graphically (the whole net highlite while hovering over) would be nice, but not necessary.

In pcb_new all functions (ratsnests, Add/edit track, Highlight net..) work according to
- pin P only connects to pin C
- pin C connects to pin P and all pins of net2
- net2 pins connect to all net2 pins and C

Star topology, decouplers, and "two nets connecting at a given point" could be created this way.