Expat, I'm not sure that's right. Isn't Scotland doing some sort of program where if you complete a degree there you can work there for another year or so?
That measure is being challenged in court down South, and the new Secretary has a good case - as it is indeed technically illegal for a member of the UK to have a different immigration policy. Strengthening the Secretary's case is the fact that Scotland has attracted a significant number of EU immigrants since the Eastern bloc countries were admitted. It's a load of tosh, IMO, b/c it buys it only buys you two years, anyhow. After that, you are back at square one - in need of work permit sponsorship.
You must be a student for 10 years before being able to apply to settle as a permanent residency.
It's an immigration policy designed to keep studying from being a route to permanent immigration. The US and many nations have a similar policy in place.
A good option is to train for a shortage profession - such as social work or nursing. This way you can easily gain a work permit, do you 4 years, and then apply for ILR/permanent residency.
You need 11 months on ILR to be eligible to appy for nationality.