314 Hi and congrats on the new pup!
Young puppies can have lots of restless spirit especially certain breeds like GSD’s. In order to make things easier on your Scottie ( which will likely be your pups first choice for a playmate) you are going to have to provide other appropriate outlets for her energy. Play games with the gsd to tire her out such as a proper game of tug, or fetch. Obedience training is mental stimulation which is tiring as well as puzzle toys (like a kong or treat ball ) or chews like bully sticks or a sturdy nylabone. It will also be helpful for her when first coming out of her area in the morning. If you give her appropriate outlets she will engage in the undesirable activities far less.
You may want to keep a leash on her in the house to manage her better if she is still hard to redirect when being overwhelming to the Scottie or kids.
Have you read through the various layers of the triangle? make sure you troubleshoot each layer and are following good pack structure rules.
