Struggling with enable device mode and pull image

Hello,
I met two problems.
1,I need to install CHR on vps. Some vps provider do not provide hard reset or power off functions so that I find noway to enable container device mode. Could Mikrotik remove the limit about “press of the reset button, or a cold reboot”?
2,The newest version dockers can not be pulled. The error message is ‘error response getting manifests: 404’. There is no problem on older version. I doubt that there maybe some features upgraded on docker file and RouterOS doesn’t support yet.
Could Mikrotik expert fix these problem? Thank you.

Are my questions too naive to answer?
Have to hard reset to enable container device mode is rediculous on a remote vps. Does Mikrotik have any plan to remove this rule?

For #2, see this thread: http://forum.mikrotik.com/t/import-adguard-dns-container-image-problem/164536/1
Hopefully fix will be in 7.10beta. Meanwhile, pull to PC and save as tarball for upload to RouterOS and import.