UCS Manager: Hide/Show UCSs 
Access: Click the UCS Manager option in the Floating Toolbar or select Edit > Filter > UCS Manager from the menu bar.
The UCS Manager dialog enables you to hide / show Individual UCSs or All UCSs.
Hiding/Showing Individual UCSs
You can hide or show individual UCSs using the UCS Manager and the Hide 
or Show 
icons beside each UCS, as shown in the examples below.
Examples:
In the following example, some of the UCSs are shown:
In the following example, UCS17 (the right-most UCS) is hidden from the display:
Hiding/Showing All UCSs
You can hide or show all the UCSs from the UCS Manager, using the Hide All or Show All buttons at the bottom of the dialog.
Examples:
In the following example, all UCSs are shown:
In the following example, all UCSs are hidden:
