When you install a plug-in from AutoCAD App Exchange Store, sometime the ribbon doesnot show. These step by step instruction might help you.
Note: The tab’s name Plug-ins might be different. It can be Add-ins, or something else regards to your language package.
Normally, plug-ins (if properly designed) will be loaded at AutoCAD start up. If not, check APPAUTOLOAD value which should be 14. Then run APPAUTOLOADER command to reload all plug-ins.
If you cannot find your Plug-ins tab, right click on any ribbon to show popup menu and make sure in Show Tabs > Plug-ins tab is ticked.
If in step 2, you cannot find Plug-ins tab in the popup menu, go to step 4.
If Plug-ins tab is there, but you still cannot find your plug-in’s ribbon panel on it, then try these following:
Run CUILOAD command. If the plug-in is already there in the Loaded Customization Group, unload it. Return to Step 1, run APPAUTOLOADER > Reload.
If the plug-in is not in the listed, may be it is not properly design, or it is design to be loaded the different way. It is time you should contact the developer for support.
This step is required only if you cannot find Plug-ins tab anywhere in your Work Space.
Then, it might happen suddenly all your installed plug-ins appear not in 1 row, but each has 1 ribbon tab of itself (as image above).
This required you to unload all plugins (Step 3) then open CUI manager to enabled the official Plug-ins tab loaded.
1. Run CUI command
2. Run Customize Workspace
3. Tick on Plug-ins in Ribbon\Tabs list, then click Apply, or Done
4. Make sure the properties of Plug-ins tab are:
+ Default Display = Add to Workspace
+ Workspace Behaviour = Merge or Add tab
+ Aliases = ID_ADDINSTAB
Click OK to close the CUI window. Double check Step 3 to be done unload all plug-ins cuix. Now you go back to Step 1, run APPAUTOLOADER > Reload command (or just close and reopen AutoCAD).
Successfully, your final Plug-ins tab will appear properly with all plug-ins panel merge in 1 row, like this: