What utter garbage. The controls are totally wonky and broken.
It's doable. it could use some quality of life stuff ofc like savestates or some presents but you canmake a scene in less than 2 minutes.
one thing that's not obvious you can only grab toys with P or leftclicking the base of them.
if you want to insert toys, i recommend rotating the toy, then flying inside of it and press P. this will basically be first person perspective flying. then scroll wheel down to lower your speed for the actual insertion.
As for posing, Floaty+Mouthphysics+Look at camera allows the head to track well.Then freeze the head when it looks in the direction you want.
When you freeze body parts the part is anchored at a fixed point. but parts can still stretch for easy readjustments. so when you get closer and closer to the desired pose, remember to update every anchor point so parts aren't stretched in the final pose.
As for getting hip movement working well. it's importing to have the pelvis unfrozen and for the body to be lifted up and free floating. they don't move well if the floor is in the way. Ragdoll helps alot for any pose that is lying down.
As for getting futa penetration going. it goes a long way to make something realistic. freeze pelvis with penis. Use ragdoll and grab the other actors pelvis and guide slowly. and if the poses are wellmade, unfreeze pelvis and you can get hipmotion working.
so basically use float for basic pose. then add ragdoll. finalize pose so no body parts are stretched. guide pelvis if futa. First person insert toys at the end. If want the head to track then you'll have to make a pose without ragdolling.