like in this video: https://www.youtube.com/watch?v=eEcoA5Fyq2g what setting needs to be checked to let you use the move tool and such during animation? This is just one example but in some other videos I see people grabbing primitives and moving them around with the move tool during animation without keying them. EDIT:…
You can use mmb to use a translation tool while an animation is running, but playback appears to stutter or stop while doing that. Interactive Playback works much better, put that on a shelf and you're good to go.