Shifter

1. Select a layer within a frame (or a frame itself)

2. Run Plugin

3. Enter the wished spacing between selection and the next layers below

-> Shifts all layers below selection

-> Optionally you can resize the frame accordingly

-> Ignores layers that are locked or hidden

Greatly boosts your workflow when having a lot of elements in one layout (vertically), if you need to move stuff around a lot and if you want to quickly change vertical spacings.