spectre save command - usage

Hello,

I did look at save command documentation in user and reference guide. But it still looks confusing to me.

I am specifically looking for commands to do following two task:
1) probe all nodes of subckt but ignore nodes connected to parasitics (can be easily done in X4 using exclude=*:*)
but in X0 following is not working
saveOptions options save=allpub nestlvl=2 subckt=H12P_SUBCNTL filter=rc exclude=":"

2) probe subckt currents like VDD and VCS for all subckts to a given depth
in X0 following is not working
save x*.*VDD sigtype=subckt

Please help?

Thanks