Hi Lemonade.
" 4. A simpler shortcut for cutting clips from a sequence. ..."
With your clip(s) on the timeline set the red cursor line at the start of the deletion. Grab the stem of the cursor line and drag it right (or left) to the end (or start) of the unwanted section. This will produce an area highlighted in blue. Right click the area and select DELETE from the menu.
The selected area of the sequence will be deleted and gaps closed.........
Deleting a section of the sequence.mp4
Complete clips are simple.......just right clip the clip in question (to select it) and then Delete (ripple). Selected clip is deleted and gap in the sequence is closed.
".....3. Animated motion based on points/markers. ...."
As Borate says, use keyframes to animate. Most of the VP effects can be animated. This example uses just Position and Scale to move the Rose png about the background....
Animated rose.mp4
basic keyframes move the object in straight lines between the frames but the graph line can have curved trajectories as well.
If you are unsure regarding the use of keyframes post to the forum and someone will explain.
Nat
Nat