In AECOSim V8i versions when it is opened then all Building Designer Tasks came to the left-hand side of the screen by default,But in connect version of OpenBuildings Designer it does not come up by default.
To bring a similar task in OpenBuildings Designer here is a Variable that needs to check,
‘MS_HIDETASKNAVIGATIONWORKFLOW’ From Configuration Variable needs to set this variable value as ‘0’.Then you need to save it from the Configuration Variable dialog box.After that, you need to go to the V8i list from the top left of the screen (just beside the workflow list) and need to choose 'Dialog'. Then you can get a similar task in OBD also,