How to reralign branches after turning off free positioning?

Does anyone know how to fix this issue i have in Xmind 8 (free version)

I had turned on Allow Free Positioning half way through a large Xmind project and this caused some nodes to overlap one another when i added more sub branches to an existing node. I tried to turn off Allow Free Positioning hoping it would revert back to automatic spacing but it did not.

Is there a work around to force it to realign everything?

Otherwise I will manually have to try and move all the nodes to do this which will be a bit of a task