I would like to create multiple mother plants for cloning via clipping to grow indoors over winter. How would one go about promoting, forcing, ex. new branch growth for clones? Can it even be done? I am about googled out on this one.

I have read about plant "layering" to create a "new" main stalk from one plant that can be done over and over, but is that the way to do this?

Anyway, frost is on its way and any help on this would be much appreciated!

Thanks.