Hello. We have a dacshund that will be turning 1 in July. We have her paper trained and would like for her to start going outside to potty. She has never used the potty outside and apears to have no intentions on doing so. She was paper trained when we got her at 6 weeks and if we're outside playing, etc. she will go to the door to go inside to potty and will not use it outside. Can you give us some suggestions on how to begin the training?