You can use "Obj-Open" method, to open a specific instance or object by defining the key value of the particular record. This Key value with Obj-Open method will fetch the record on to clipbpoard page(as defined on StepPage), if not defined the data will be on RunRecord Primary Page.

The above execution happens only if you know the Key value of the object which you want to open or access. If you don't know the key of the object, you cannot open the object using Obj-Open method.