Clear all objects (NumO must be zero)
Delete objects (from InSim or editor)
Request Z values / reply with Z values
PMO_GET_Z can be used to request the resulting Zbyte values for given X, Y, Zbyte
positions listed in the IS_AXM. A similar reply (information only) will be sent
with adjusted Zbyte values. Index and Heading are ignored and set to zero in the
reply. Flags is set to 0x80 if Zbyte was successfully adjusted, zero if not.
Suggested input values for Zbyte are either 240 to get the highest point at X, Y
or you may use the approximate altitude (see layout file format).
Sent by the layout loading system only
User pressed O without anything selected
An IS_AXM with PMO_POSITION is sent with a single object in the packet if a user presses O without any object type selected. Information only - no object is added. The only valid values in Info are X, Y, Zbyte and Heading.
Set a connection's layout editor selection
A reply to a TINY_AXM request
A reply to a TTC_SEL request
Adding objects (from InSim or editor)