What are these two keys, ⇞ and ⇟?
Those are the page-up ⇞ and page-down ⇟ keys (on keyboards without them, use fn-Cursor up/down). For a list of other common key symbols, see this answer.
What are these two keys, ⇞ and ⇟?
Those are the page-up ⇞ and page-down ⇟ keys (on keyboards without them, use fn-Cursor up/down). For a list of other common key symbols, see this answer.