Hi

I couldn't find a tutorial with this specific answer. Lets say I character, where I've created a custom action with the bone control tool. He did his thing, then after the action I've applied one of the pre made walk motions. The motions show up as a yellow strip that you can control, stretch etc. The problem im encountering is that between my action and the walk motion theres almost like a jump of frames. is it possible edit the yellow strip key frames to be able to blend my motion with a premed motion.. eg the leg ends up jumping into the start point of the pre made motion. 

My suggestion is to give a bit more time (frames) between your motion and the premade motion for you to add your own transition. If you can see the transform keys of the premade motion, then you can move your character to meet the new motion. Maybe? Then you can shorten the time once you have the motion keyframes in place by dragging them, and maybe easing in and out.
good luck

1. Select the 2nd motion clip.
2. Notice the blank transition area before the clip (empty rectangle).
3. Bring the cursor here (it will turn to a plus sign).
4. Drag the left edge of it to the 1st motion clip for the transition.
5. The character will now gradually change its pose during the duration of the transition area.





YouTube Tutorials Here