Press Ctrl+Alt+S to open the IDE settings and select Editor | Inspections. Locate the inspection you want to disable, and clear the checkbox next to it. Apply the changes and close the dialog.
What is inspection in IntelliJ?
In IntelliJ IDEA, there is a set of code inspections that detect and correct abnormal code in your project before you compile it. The IDE can find and highlight various problems, locate dead code, find probable bugs, spelling problems, and improve the overall code structure.
How do I turn off usages in IntelliJ?
Press Ctrl+Alt+S to open the IDE settings and select Editor | Code Editing. Clear the Usages of element at caret checkbox in the Highlight on Caret Movement section.