Thread:Semantic-mediawiki.org:Community portal/Mixing properties with categories/reply (3)

> Ok, i read those and have been trying to achieve it through subobjects,

The links were only listed to illuminate the issue about category vs. property and how SMW interprets both entity description types.

> could you please tell me an example?

If you look at the bottom of Template:Event calendar item you can see how a switch function is used to add additional annotations to a subject that depends on the input of the Form:Event calendar item. It should be possible for you to make similar adjustments to achieve your "hidden" property = category assignment (data input post-processing).

In case you want to make some form field to be pre-selected/pre-filled based on some input dependency from another field, you better ask for assistance on SF talk page (this has less to do with SMW in relation on how data are represented or stored).