Help needed in BPC Script

Hello Experts,

I have a requirement to migrate the BPC 7.5MS version scripts to BPC 10 NW Script.

When I try to copy the existing working BPC 7.5 MS script to NW Script, I get validation error as BPC 10 script doesn't understand few lines.

Below are the lines which are getting errors.Could you please help in giving me the equivalent BPC 10 NW commands for below lines

1)*MEMBERSET (%ACT%,"Descendants([ACCOUNT].[H1].[PNC_GPW],999,leaves)")

2)*Calculate_Difference = 0

3) Will BPC 10 accept time=next(11) command? It is not giving any validation error

I am also attaching the existing BPC 7.5MS script in this thread as below.

Thanks,

Senoy