Chain get's removed when changing the wanted input

[Chaoschaot232]

I like how I can calculate the production but what is the point in limiting it to only one chain?

If I select the product I want to have and finaly placed it's node it should be done and I should be allowed
to start a new node without deleting other existing nodes! Because I would now need per chain one
brwoser tab which eats up memory and this can't realy be your intention -.-#

So please clear the input panel after the node from it was placed to be able to add a new chain in the current ones,
but for now this is a memory eating beast.