UK Wills for long term residents in Spain.

I would be grsteful if snyone can inform me as to whether one can make a legal UK Will (I already have a spanish one) without having to go back to the UK to do so.

Although I was born in England, I moved to Scotland in my twenties and this was my last place of residence over 30 years ago. I also have a bank account there and relatives who live there, although maybe not indefinately.  Scottish Law is different to English law and so a Scottish Will probably would be more sensible.