Have never successfully setup CapsMan mode before, trying to play with tis.
Have find out there is a quick set mode "Home Mesh" which should automatically configure router to be a capsman controller.
Have found old 951G-2HnD device, reset it to default ("Basic AP" quick set mode), connects to it from winbox, update to latest fw, configure only SSID, password and wifi password, make sure router and wifi work as expected. After that, went to quick set tab and select "Home Mesh" mode, and reboot the router.

Now, this SSID does not appear on wifi, cannot connect to it at all. Although winbox configuration seems to be valid, did not see errors.
Seems like capsman configurations are created, and wifi interface has been connected to controlled.
What is wrong, why this configuration is not working right away "out of the box"?
Full configuratio is here: http://sergeskor.no-ip.org/Files/mkt/HomeMesh.rsc
Screenshot:

Disable CAPS under the CAPS button on the AP wireless interface. Then try your mesh setup. Once CAPS mode is enabled on a device, most selections you’ve made in the wireless interfaces category will not be active.