Moving dog to outdoor pottying

No judgement here plz. My girl is about a year and has solely used pads unless she happens to be outside when she has to go potty. But definitely prefers pads.

I am moving soon and working toward getting her to potty outside but ALSO still have the option of the pad (mostly at night or extreme weather… it gets very very cold where I am). I know not removing the pad option fully is going to make it harder, but want to keep her pad trained as well, and just have her prefer outdoor potty over pads.

Given how old she is do I take the same approach and bring her pad outside and slowly take it away? I am going to bell train her as well so any advice on that is appreciated. Also any advice to get them to potty on command is appreciated too! Thanks!