Can't animate? Harmony 12

Hello, I have just started using Harmony and I’m still trying to figure things out. Whenever I try to just simply draw and animate I can’t because whenever I try to create a new frame it just shows the previous frame and won’t allow me to onion skin. What do I need to change?

To draw, click a the frame of the layer you wish to draw on in the timeline and
then go to the Drawing or Camera view to draw.

For onion skinning, go to menu-View-Onion skin to see if you have more
than 0 next/previous frames selected and also to make sure the onion skinning
is turned on.