The 5m lab (AKA "SDV-6 'Delphi'") has an EVA airlock hatch visible on the mesh, but it's not possible to use it: it's not clickable as other hatches are, and trying to send a sciencist on EVA gives the "EVA unavailable" error typical of hatch-less crewed parts.
The 5m lab (AKA "SDV-6 'Delphi'") has an EVA airlock hatch visible on the mesh, but it's not possible to use it: it's not clickable as other hatches are, and trying to send a sciencist on EVA gives the "EVA unavailable" error typical of hatch-less crewed parts.
This is using SSPXr 2.0.5 on KSP 1.11.2 .