I want to have a blank page when I open Elementor. At present when I click to insert a new page it opens with the 'edit with Elementor' button. Then when I click open with Elementor a page opens with a title of Elementor 55# and a list of sidebar stuff on the right. How do I delete the title, search field and sidebar stuff so that I have a blank page ready to insert my Elementor page templates? In fact, do I really need to customise a theme? Can I not go straight to Elementor?