yes I'll make more info pages later (see the readme )
About your problem, if you want to adjust a key frame's values by dragging those orange property values, then you have to put the timeline indicator on top of the key frame that you want to adjust. Selecting a key frame does not achieve what you want to do.
Because this is kinda annoying to always do manually, you can use the little grey/black arrows to the right of the property. I call them 'key walkers' and they allow you to .. walk the keys, one by one.
So you have to get used to moving the timeline indicator to the place in the animation that you want to adjust before adjusting anything.
About your problem, if you want to adjust a key frame's values by dragging those orange property values, then you have to put the timeline indicator on top of the key frame that you want to adjust. Selecting a key frame does not achieve what you want to do.
Because this is kinda annoying to always do manually, you can use the little grey/black arrows to the right of the property. I call them 'key walkers' and they allow you to .. walk the keys, one by one.
So you have to get used to moving the timeline indicator to the place in the animation that you want to adjust before adjusting anything.