We have a large projekt in a hierarchical design, and there are some single pin nets, because we don't need all the hierarchical ports in the overlying schematic. In this case there is a unused Pin on a hierarchical Symbol, so i tried to assign this pin a NC property. There's no effect, the net in the underlaying schematic is marked as single pin net.
Is there a sollution or a workaround for my problem?
If the pins on the block are not used then you will just have to live with the warnings about unconnected ports and single pin nets. The NC symbols are intended to terminate pins on symbols that go to layout, not to be used through hierarchical blocks.