From the Autodesk App Store:
Initial Levels and Grids helps you to define the levels and grids that will be used in the project. For grids, allows you to create the orthogonal grid frame defining a different X and Y distance. For levels, it keeps the elevation of the first level in the project, allows you to choose a total number of levels and a standard space between them. You can choose to create the plan and ceiling views along with the levels. Grids can only be created in plan and 3D…
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