Hi All,

I'm trying to add small add-ons/apps (not sure which they are classed as), but the server is hosted by a third party

1. is this even possible?
2. If so, how do I do this?
3. The listing has a 'support cost', based on the number of coded lines, is this a required cost or is it optional? 

The first one I'm looking at is the 'Delivered qty percent on sale order' by Init Co. Ltd., this is hopefully a simple, low cost addition that will help our internal processes. Depending on the answers for the above, I would then be looking at larger scale additions in the future. ​