>>I had build one model, but now I'm using the first model for new modelling. I have rename it with 'save as', but when I run the results, in results view, above the branch the old name appears. Can you please point out how the change this.
By design, the top level branch name does not automatically update when you use the Save As function. However you can manually change the name by single clicking on the tree branch once in Analysis view. Wait about a second, then single click on it again. You can then edit the name directly on the tree.
Good luck!
Charlie