Tinkerwell allows you to create multiple tabs in your editor. Each of those tabs can open a different local or remote application folder.
Each tab can also individually have a different tinker mode open. So you could have one tab showing you the table result of an Eloquent query on one of your live servers, while the other tab is a simple scratchpad using the default Laravel application.
To open a new tab, press Ctrl/Cmd+T.
If you want to close an existing tab, you can either press Ctrl/Cmd+W or click on the "X" icon in the tab title.