This paper gives hints on
- how you can assign additional information to, or
- with other words how you can save own data into
a group placed onto the floor plan.
You can create a group with the function ACAPI_ElementGroup_Create. By default, this function creates a simple group with no additional information. It becomes only a container of some elements. However, it is possible to assign any number of bytes at the time of creation; there is no restriction to the amount of data.
You can assign custom data to a group. When a group is created, you are free to add any number of data bytes to the group with ACAPI_ElementGroup_SetUserData function.