Difficult in editing a long content

Hello,

It's not convenient while I put a long text into the admin product page, I have to scroll up the browser to upload a image, then scroll up to edit the size of a sentence......

Where can I enable the side slider of the rich text editor?
It's nop4.5

edit defaultEditorSettings of tinyMCE.init here src\Presentation\Nop.Web\Areas\Admin\Views\Shared\EditorTemplates\RichEditor.cshtml

var defaultEditorSettings@(random) = {
            selector: "#@Html.IdForModel()",
            fontsize_formats: "8pt 9pt 10pt 11pt 12pt 26pt 36pt",
            height: 200,
            width: '100%',
            resize: true,
            min_height: 200,
            max_height: 300,

Hello Rashed,  you are a genius, thank you