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you can use the snapping mode (shortcut S) to help rotating items at fixed angle-steps as well as move them along the grid.
There are no detail options in the inspector for position / rotation / color RGB and scale available yet. We’d like to keep the inspector lightweight so that newcomers to CoSpaces are not getting overwhelmed. However, we’re looking into ways to expose more detailed attributes on our items while keeping the item information at hand easily digestible.