Microsoft Photo questions

Hi

I just found the microsoft photo app on my Windows 10.  I want to do a video slide shows from my pictures but have following questions:

1  How do I select multiple pictures and add motion or effect for all the pictures instead one at a time, i can't seem to do that and I prefer not to do it one picture at a time

2. is there an option for transition in between each picture?  the old microsoft photo progam had that option?

Thanks

Jeff