5 months ago - SLG-Dennis - Direct link
The steps mentioned above do _not_ work, the line was removed from Balance.eco and moved to Difficulty.eco in preparation of the next hotfix that will address the problem, so singleplayer will receive claims on levelup. Changing it in Difficulty.eco doesn't do anything currently either, please have allow us a bit more time for the next hotfix. Sorry for the inconvenience.

You can also spawn claimstakes and claimpapers in the meanwhile via /give. You do not need to claim anything on singleplayer, though - only your house for housing bonus and some machines like the Sewage Filter.
5 months ago - SLG-Dennis - Direct link
Yes and before that Update the setting only worked in worlds with settlements off, which is only the case for migrated worlds from 9.7 or dedicated worlds that were made that way, but not newly created singleplayer worlds.