In this video I will show you how we can select multiple similar 2D items in a group of many different items, then you can change the properties of them, this will be very helpful in some cases.

By using the "Chain similar" function in a 2D toolpath, we can select the similar chains on the screen and in the mean while, we can also change the properties of the chains that being selected.

This tip can be applied on Mastercam 2020. I maybe outdate with future versions.