There are some spam issues in the comments, so I had to disable comment editing for a short time. It'll be back once the spam bots are gone. FYI... they leave a comment with "great" and then edit in the spam stuff later, to get around the filter.
(Pretty much ONLY used for furniture. And often "umräumen" is more idiomatic choice there.)
2.
to adjust, to change, shift
("umstellen (auf)" - for settings and all kinds of "organized plans" including things like diet. Also works reflexively for "readjusting, adepting" yourself.)