I am using sp4.0 of solidworks premium. I am trying to complete the sheetmetal tutorial step SIX of the creating an edge flange portion. I am supposed to click on smart dimension and then dimension the edge flange tab. Usually with smart dimension I can roughly dimension the lenthly and then click on a pop up box and type in the value I want. In this case 36mm for the notches on each end. I am unable to do this at all. Could someone tell me what I am doing wrong step by step as I am a novice. I tried to upload my picture but the webisite says it is not a valid file type?