The Block displays the floorplans with all mapped spaces except zones you can click the Spaces icon to see the spaces.
When Spaces is turned on then the Block displays following:
Spaces that do not have a charge rule of Dedicated Allocation display grey, for example:
Spaces that have a charge rule of Dedicated Allocation display blue to make is easier for you to see unallocated spaces, for example:
Team and Neighborhood blocked areas are hidden.
Also, the Information Panel displays the Space tab and you can click the the Space Types tab. This contains the breakdown of available space types found on the floor e.g. Desk: Standard, Sit-stands, Hotdesks, and the space's area.