# Locate an existing or create a new [[Reference]]
# Assign the reference to the '''REFERENCE ''' attribute either by
#* dragging and dropping the reference object onto the cell
#* selecting the desired reference from the dialog appearing after double-clicking the cell
# Locate an existing or create a new [[Selective List]]
# Assign the list to the '''SELECTIVELIST ''' attribute either by
#* dragging and dropping the list object onto the cell
#* selecting the desired list from the dialog appearing after double-clicking the cell
=== NEEDSVALIDATION ===
Enable [[Validation|validation]] by checking the '''NEEDSVALIDATION ''' attribute of the MetaProperty and let the system explicitely store a validation time stamp information in the database. This is particularly used on the mobile client in combination with the [[SYSCLS_TASK]] and [[SYSCLS_MEASUREMENTTASK]] classification.
=== VALUEVALIDATION ===
Assign a [[Value_Validation|value validation]] object to the '''VALUEVALIDATION ''' attribute of the MetaProperty either by
* dragging and dropping the validation object onto the cell
* selecting the desired validation object from the dialog appearing after double-clicking the cell