When the mouse clicks on the content of the page and the cursor stays on the page, using the shortcut key of clone pane as popup will automatically focus the pane as popup to the cursor position, which is very convenient (I don’t know if this is a feature or a bug, but I hope to keep this feature) .but there is a bug
Using legend in this scenario will also force clone a pane even if you do not use related functions. When the mouse clicks outside the page, the cursor does not exist in the page and then use clone pane as popup will not appear this bug
