So im trying to edit an existing idle animation to holding a weapon, but still want to keep subtle movements in the arm, so its not completely still during all frame. Does anyone know how to approach something like this? Do i have to add new keyframes on a top of existing ones? It works fine when i just double clicck on animation file and edit it there, but when i try to edit it in sequencer ( i need custom camera to see how it looks in First Person) it only applies keyframe to a single frame