Questions about Work permit Extenstion

[pb1914]

Hi,

I have few questions as below on work permit extension :

1. i came to Canada on SOWP and if change the Employment location which is mentioned on my work permit , i would not be able to apply for work permit extension on my spouse, is it correct ?
2. Is there any Criteria for Salary for both combined for work permit extension ?
3. Once my Sposue get a work permit after study completed , i need to apply for a work permit extension so till decision come , i can work till that time,correct ? Do i need to apply for restoration status , If yes, how many days i can stay and work ?
4. Is Category 0,A,B compulsory for spouse ?
5. i came here on SOWP, can i apply for a PNP program ?

Any help would be much appreciated.

Thanks.