light lack leg

Hello,
I wanted to create light legs for my table.
There are 3 fixing by screws, notches for windows of 3mm and they are 100mm of height.
The package includes 2 types of legs.

The first type is totally "closed". the windows are slipped in and can not be maneuvered. They generally go to the back, where there is no door.

The second type is provided so that the window just comes to rest against it. This is the type of leg to use to have a door that opens.

In addition to the legs there is also a small accessory, named "plexi lack".
This accessory is simply screwed on the foot of the table lack to block the windows.