Create custom inspections

In the Settings dialog (CtrlAlt0S), go to Editor | Inspections.

You can also press CtrlAltShift0H and select Configure Inspections.

Select the profile in which you want to create a new inspection.

On the toolbar, click the Add Custom Inspection button () and select Add RegExp Search Inspection… if you want your inspection only to highlight code. Alternatively, click Add RegExp Replace Inspection… if you want your inspection to highlight code strings and suggest fixes.

When finished, click OK.

In the Custom RegExp Inspection dialog, type a name of the new inspection, specify a tooltip, description, and provide a suppress ID if necessary.

Apply the changes and close the dialog.