Only up or down

Need a trick - low ceiling and snuggling down. A single-sided lift-bot is used:
If a MOTOR is attached to the Bot-lift, then it will only go down!
If there is one more ANY bot (B,R,L) in the Bot-lift - it only moves up! It can be not only a bot! The main thing is that SOMETHING should be under the feet of the main bot that controls the elevator !!

Spoiler: Demo Card

Spoiler: Video walkthrough

I was going to give only four stars but after looking at the video i see that i was going round in circles and added an unnecessary set of moves. I saw the potential move of B catching a squeezed off falling R and thought that it must be in the gameplay . Got there in the end but my problem was that R varied between two landing blocks. Great fun.

Very Nice Bot lift level I really enjoyed At first When my B went to the lift the lift didn't go up so I thought this move is not needed in this Level I think it's a bugSo I watched your video and after a retry it worked. I am very happy that I managed to win.
THANKS FOR SHARING

@ridgerunner @Adiorama
Thank you very much! This is not a big level, but probably not very well understood due to the unpopular elevator. But I'm glad you did it and you liked it! Thank you.
@Adiorama Yes, you are right, this elevator has a different principle of operation. It is different from the one that was on the level - "Tower-lift ". There was an elevator that went up and down on its own. This level has an FD built into the elevator!! Therefore, the elevator is controlled.
Thanks friends!

Very cool short tricky level... спасибо @Denis Nazin

@delator77 Wow! Thank you so much my friend. Спасибо вам большое мой друг

At first I thought little B had to stack up with little R...so I was making things more complicated. Your picture hint helped love playing with the Littles

@Sammy 5 Thank you very much!!