We might require to switch between tabs in any browser like safari or chrome or among tabs in the finder. To do that without using mouse following is to be done:
Press command key and then any key between 1 to 9 to move among the nine opened tabs.
It would not work for the tenth tab onward
There may be several ways to put icons on the desktop in a MacBook.
One way this author finds convenient is as following: open finder –> click on any folder/file/application–>click make alias option–>drag the created alias to desktop –> your desktops shortcut is ready alike a windows desktop flavour.