Why is the CDVT function always disabled?

[Martin]

The CDVT (Continuous-Discrete Node Value Transfer) link is only supported for "flat" models, i.e., CDVT links are not supported for OOBNs. Since new networks are OOBNs by default, the network has to be saved as ".net" before the functionality becomes available.

The button becomes "non-grey" when a pair of "legal" nodes are selected, i.e., one continuous node and one interval node including intervals with both -oo and oo.

The functionality is also available under "Network->analysis->CDVT function".