Often I will launch an interplanetary satellite into LKO via Spaceplane, but due to the low thrust of the ion engines, I'm forced to manually create a spiral trajectory over the course of several nodes, before ejecting it out of Kerbin's SOL. this is done by <Change Apoapsis> <At Apoapsis> and doubling the AP for each node.

what I wish it could do, is accept 125% as the value, instead of having to manually calculate and type it in.

Manuever Node Splitter or KSPTOT will split one big node into several smaller ones for you, which works great for turning a 2000 m/s burn into 5 x 400 m/s burns.

seems like #737 covers the more actionable part of this request. closing as dup.