Those are replacements for "snap toolbar":
This is an implementation of ux#93 (closed) feature request.
Original "snap toolbar" has been reduced to a single "snap on/off" button and popover button. This toolbar is now docked at the top right corner, either next to command toolbar (if present) or tools toolbar.
Note: removal of former snap toolbar made some toolbar arrangement options redundant. I removed "Custom" option and there's only "Default" and "Wide" now.