Add Code to properties in active x CheckBox

Yes. Go to VBA. Select Sheet1. Click View Code. At the top of the right window, there are two dropdowns. Click the left one and select the checkbox in question. It will insert the Click event. You can then change events on the right side, if so desired.

Enter this.

Private Sub CheckBox2_Click()
With CheckBox2
    .
End Sub

When you enter the dot, a context window will pop up showing all the attributes/methods available.