You posted your question in the non-technical Lounge forum, which is where you can connect with your peers for conversations that don't directly relate to product help and support. I’ll move your question to the Animate forum so that you can get the answer you are looking for.
P.S. For a list of all available product forums, see https://forums.adobe.com/welcome/
Thanks Barb for the move.
The upper right of the main window has a menu that may currently say "Essentials". You can select Reset from that menu to fix the layout.