You're right that D, R and P areas are searchable. Their identifiers are a little more well-defined and internationally standardised than TRA/TSA. We'll consider adding support for the latter too, though, if lots of people ask for this.

Hi, SD Team

In the Find window we can search (among other things) danger, restricted and prohibited airspaces, for example danger area: EPD23.

Is it intentional that we can NOT search airspaces like TSA, TRA or MRT, for example: EPTSA02B ? These airspaces are well defined and (relatively) constant, theirs dimensions can be found in AIP Enroute section.
From the user point of view their definitions, names and presentation in SD looks similar to D, R and P airspaces so it looks like adding this feature should be possible.

These airspaces are not active everyday but they are presented on the map in SD always (if option in mapping menu: 'restricted and prohibited airspaces' is turned on).

This 'extended' find feature can be useful during preparing to flight, when pilot checks airspace activity for the flight day.

Best regards,
Jan