phpstorm shortcut key for folding specified level code

phpstorm’s shortcut key for folding code at a specified level

As shown in the picture, the part circled in red is the corresponding shortcut key, but I don’t know how to press it. Does anyone know?

Reply content:

This shortcut key requires the numeric keypad.
The method is: first press and hold ⌘, then press * on the numeric keypad, hold both, and then press 1 on the numeric keypad.
Look, it’s not quick at all.
Macbook can’t press it out at all.
Let’s use ⌘＋ and ⌘-, they are more convenient.

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