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I have a canvas app. On the main screen we have a gallery of different sections [ Information , Personal,Record,School,College,Job ] etc. with one per

I have a canvas app. On the main screen we have a gallery of different sections [Information,Personal,Record,School,College,Job] etc. with one per id. All have their unique id. but for some data there can be more sections and for some there can be less so order is not specified.
Ask- I want 2 icons on every section screen (Next and Previous). By clicking next I can go directly to next section screen. As currently in this ex. If at first I select Record in Gallery and then from Record screen I select Next I will be navigated to School screen.
1)Add on select code to know which current section were on
2)Find next section based on id of sections
3)Navigate code
Sometimes the gallery has more than 10 sections

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