I believe the latest OpenSTAAD manual needs more clarification. It seems like the manual has taken a step back from previous versions. For example variable types are no longer specified in the manual and it seems like all variables are shown as a variant type. This causes VBA to run considerably slower. Also the commands shown in the latest manual have the following form (example with GetMemberEndForces):
Latest version- OSOutputUI::GetMemberEndForces
Previous version- Output.GetMemberEndForces
I find that I use the new manual only to check the availability of a command, but then go to the old manual to get the correct data types and other required information.
Old Manual
New Manual
Just a suggestion.