1. Go to WordPress Dashboard > RS Header-Footer > All Header Footer and edit any header and Header or Footer by clicking Edit with elementor. Check screenshot
2. For Creating New Header You have to Click Add New Template and choose Header:
3. When you want to use the header entire website then select the display condition entire website.
4. When you want to use the specific header then choose the display condition specific page.
5. If you want to enable elementor default canvas layout then check the box.
6. Header Footer Widget Enable Disable.
Sticky Header
1. For enabling sticky header go to header editor on Elementor then edit section and select (Header) from -> Layout -> HTML Tag.
2. Then select (Sticky Enable or Disable) from -> RS Header Settings-> Sticky Header.