You know, I just had an idea for something that would probably be pretty useful, but I dunno how complex it would be to implement.
It would be nice to have a reminder when you have researched a new level of tech for ship components, but haven't actually designed/researched a component using that technology yet.
Something like:
"You have access to Ion Drive Technology, but haven't designed an Engine using this technology yet."
"You have access to Thermal Sensor Sensitivity 14, but haven't designed a Thermal Sensor using this technology yet."