Solved
How to create diameter dimension with one click left mouse and then middle mouse in drawing ?

But I want to do it with one click left mouse on object, I don't know, help me.
Thank you so much !

But I want to do it with one click left mouse on object, I don't know, help me.
Thank you so much !
There is no single click method for a diameter dimensions.
Single left click and then middle to place is for radius dimensions.
Double left click and then middle to place is for diamter dimensions.
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