Create new type of stational structures: shipyards. They will be of 3 sizes: medium (frigates, cruisers,battleships), large (+cap), superlarge (+supercap). Expandable.
So usual stations and citadels are no more able to confine ships but commodities only. Only shuttles will be able to dock inside. They will be having dockyards for ships in order to work with inventory and services. And number of ships being able to dock simultaneously is restricted. Ships would no longer “dissapear” when docking. They take their place in yards so we could see them. If all docks occupied coming ships should be wait. There will be time restrictions for visit which depends on number of players awaiting outside.
This will fit reallity. Cause current stations on a volume just impossile to have all this ships (especially freighters) inside. Space is vast so capital ship yards could be really huge. Alliances in order to keep all their capital fleet should put their efforts to create a place for them to dock.
Ship yards will be having powerful turrets and strong shields.
Trade hubs must be redesigned respectively so they will be special huge complexes.
Inspired by this topic: Adjustment of the size of the stations and the materialization of the decorations