Below is how many people make a +/-15V split-supply in LTspice:

[![enter image description here][1]][1]

But this takes too much time each time to select 3 components GND and give them values one by one, etc.

So I was wondering if there is a way to copy this topology as a single symbol or create one in LTspice from scratch. The idea is to select a split-supply directly from its own symbol. Does anyone have experience with that? I saw some tutorials how to make symbols but they were about op-amps.


  [1]: https://i.sstatic.net/bnkp1.png