Yes. You can apply for visit visa when your sowp is in progress and you can get it approved. I mentioned in my visit visa sop that since sowp is taking time to process, i need to visit my visa for a short time.
After reaching canada, i updated the canadian address and contact address in my work permit application through webform. Confirmed the same with the ircc agent also. But my file is still in new delhi. She insisted me to raise a seperate webform requesting change of country and i did so. Its been two weeks, will confirm in few days whether my file has been transferred to canadian office or not.