Some of you may have seen this post on Veritas as well (except not as expanded). Enjoy!
This is technique is fairly simple. I sort of long forgot about how easy and effective it can be. I like using this one for spinning objects. It should also work well with sliding.
Basically this is what you do. Visualize the motion you want the object to take one from beginning to end. In other words, if you want to spin a psiwheel a quarter turn, visualize it happening. Then "sit" on that visualization as you stare at the object and wait for it to move. It often helps to pick a corner if you're going to do this, but it can also work just as well to focus on the entire object. The main reason I like focusing on a corner is for simplicity reasons. It's very easy to stare at the motionless center of an object (which will pretty much be at rest visually even if it is moving) and not formulate any sort of intent. So my solution is to pick a corner - which definitely won't appear to be motionless while the object is in motion.
I think of it as layering as well because I will "sit" on the visualization while waiting for the object to carry out the motion. In contrast to my other methods, I will use this one for longer time periods of intent. Rather than 10-30 seconds, I might be "sitting" for several minutes at a time. I thought this might be a good alternative if you prefer to have longer strands of intent and are looking to prevent distractions during this period of time.
More on "sitting" (if you care to read):
What I mean by this is simply visualizing your intent and then hanging on to the same intent. The opposite of this would of course be changing your intent. I think keeping them same intent helps in terms of consistency. But don't be afraid to change your intent several times through a practice session because sometimes it helps to "start fresh".
I also notice that there's a tendency to focus on the space I want the object to occupy rather than on the object itself. This can be problematic. Not focusing on the object itself often prevents movement as it somehow seems to not allow energy to converge on the object. So the solution is to make sure you are staring/focusing on the object while you do this.
Long post so I'll summarize: 1) Visualize 2) Wait 3) Keep focus on the object 4) Repeat this process several times 5) Occassionally change intent.