settings in the Drawing Preference : mm & Architectural format

dear LibreCAD user

one question regarding the settings:

main unit - milimeter
format : architectural

these two settings in the Drawing Preference  do not fit - in other words they do not get accepted!?

why is this so!?

i do not want to work with inch

Look forward to hear from you

regards otrott

Format Architectural is an us/imperial standard using inches and feet only. If you want to use metric units (mm, cm, m) then use Decimal or Architectural(metric), the latter with meters only.