List of model entities to display properties for.
For Trimble Connect compatible entities,
use the URL encoded FRN notation for entities ID array.
E.g. an entity with IFC GUID 3CqVfw$t15ihB2vPgB1wri should be placed to the array in form frn:entity:3CqVfw%24t15ihB2vPgB1wri
Optional title to be used in the panel (where it can be applied). If omitted, an internal default value is used.
Title can e.g. be the entity name or type in single-selection.
Data stucture representing data required by Property Panel