I have long looked for a stacking SQL, finally i decided to make one:
update furniture set can_stack='1'
Run a query on that and BOOM everything in your habbo retro is stackable.
*MIGHT ONLY WORK FOR PHOENIX V.3*
Also if you would like a stack height on everything run:
update furniture...
I have a mac too and its hard to find furni, but i use the VPS to get it cuz its windows. Hope it helped.
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