In order to use this vendor, you must already have the caspervend vendor system such as shown on marketplace at:
https://marketplace.secondlife.com/p/CasperVend-Complete-FAT-PACK-Massive-saving-Vendor-Boards-Vendors/1626868
From that use the script located in any of the vendors that you have in the kit entitled "caspervend2" (or current version) then continue to set up this vendor as you would with one of the prefab caspervendors. Accept it's permissions, and log into your account and tell it what products to use, etc.
This product is modifiable, so you can change the color of the frame or the button textures if you are so inclined. There is a back panel face that can also be textured if you like but we have left it alpha in our display. Vendor v1 is 2 prims at current size, Vendor v2 is one prim. (exact prim count may vary) This is designed to be low impact, good quality mesh.
Please contact LedbyHer if you have any problems with a product before leaving any feedback on marketplace etc.
See item in Second Life