Find a floor plan where all or most of the Grids are visible.

Use GRID VERTICAL EXTENDER and select the Grids using MANUAL Selection or AUTOMATIC (ALL GRIDS) Selection.

Choose the TOP and BASE level, assign offsets if necessary.

Now your Grids will be visible through all the levels between the Top and Base Levels selected.

The installer that ran when you downloaded this app/plug-in from Autodesk App Store will start installing the app/plug-in. OR, simply double-click the downloaded installer to install the app/plugin.

You may need to restart the Autodesk product to activate the app/plug-in.

To uninstall this plug-in, exit the Autodesk product if you are currently running it, simply rerun the installer, and select the "Uninstall" button. OR, click Control Panel > Programs > Programs and Features (Windows 7/8.1/10/11) and uninstall as you would any other application from your system.

Some users behind a Firewall or proxy may have problems to activate the add-in. Please follow the instruction on the link to solve proxy problems.

https://knowledge.autodesk.com/support/autocad/troubleshooting/caas/sfdcarticles/sfdcarticles/AutoCAD-requests-to-Autodesk-servers-blocked-by-proxy-servers.html