Fsbuild-2 Flight Planner

Hello Ernie or Other,

Been using ISG1 for a few years now and stumbled across a scenerio I have been struggling with. As with most if not all FMC's, the flight computer will not initiate descent or climb unless the AP/MCP is at a lower or higher altitude. My question is. I wish to accomplish this with the ISG1 Smiths FMC. I thought there was a cfg setting to accomplish this but have been struggling to determine which one. Could it be be one of the following?

VnavOffOnManAltChg =1 Turns off VNAV if manual altitude change is detected.
VnavSetAlts=0 Does not set altitudes when VNAV is on (default is 1)
VnavSetSpd=0 Does not set speed when VNAV is on (default is 1)

Thank you
Randy Donnelly

Thank you gentlemen. Between the ISG1 setting and the AC,AP cfg I think I got it. I'll give it a try.Never thought about the AP.default VS after all RW aircraft do not have a default VS. Then ones I've flown better not have!!!!