Removing modules from selection for NPC stations

[argon_emperor]

Hi there, was wondering how to go about removing certain modules from being built by NPC stations
In particular, was wanting to remove all S and M storages, as well as Basic and Standard docks, so only have L storage and Luxury docks be built. Also wanted to remove the Argon Tradestation 1 dock pier from being built on standard stations (it just kinda looks silly on any other stations)

The only file I can see that might be right is the "modulegroups.xml", as that seems to list the modules in each group, just wondering if it'll work if I remove the selected modules from each section (and in the case of the docks set the 'dock area' and 'dock area low tech' to be the same as the 'high tech' ones), or if that would be likely to break something else?