Sticky lines
The sticky lines feature pins key structural elements, such as function
or class
declarations, to the top of the editor as you scroll, keeping scopes visible for quick navigation in large files and codebases.
You can also click any of the sticky lines to scroll the editor to the corresponding declaration.

By default, the maximum number of sticky lines is set to 5.
Press CtrlAlt0S to open settings and then select Editor | General | Appearance.
Next to the Show sticky lines while scrolling checkbox, enter the desired number of sticky lines.
By default, the Show sticky lines feature is enabled.
Right-click the sticky lines in the editor and click Disable Sticky Lines.
Right-click the gutter, select Appearance, and then deselect Show Sticky Lines.
Press CtrlAlt0S to open settings and then select Editor | General | Appearance. Clear the Show sticky lines while scrolling checkbox.
Press CtrlAlt0S to open settings and then select Editor | Color Schemes | General | Editor | Sticky Lines. Edit the color for the background, border, or hovered state.
Thanks for your feedback!