In sublime you can select a part of text or even whole text by Ctrl+A and tap Ctrl+Shift+L will split your selection into multi cursor, it is especially useful when you deal with a big selection, and it's a bit horribly to select it by Mouse3 dragging...

Is it possible in Idea?
On my machine the keyboard shortcut to make this happen is alt + shift + insert. The command is called column selection mode.

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