With "ready built" wireless cpe (such as Smartbridges or Osbridge) you can remotely log in to the device (ie over the wireless link) and then do a scan (site survey) to see what other access points it can see. With the Mikrotik this is not possible as the scan is a permanent scan (until you manually stop it) and if you try it whilst logged in over the wireless link it just kicks you off.
It would be great if there was some way to do such remote scans as with our own network we often need to assess if a customer is better off feeding off a different access point.