Hi Deep Prime,
View is part of main.aspx, so we shouldn't remove the "/main.aspx".
Actually such of URL "/main.aspx?pagetype=entitylist&etn=account&viewid={<GUID value of view id>}" can be regarded as a directive to show a specific view instead of a standalone page, we can see that if we change the view, only viewid parameter of the URL will change accordingly, and the view will be rendered to a different view.
In a word, UCI is a single page application.
You could refer to following workaround to only show one view and do not want to disable other views in an app.
1. Create a HTML web resource.
2. Put the code to the file content.
View
It create a copy of the whole page using iframe(a URL to show a specific view), then inject custom CSS rules to hide top and left navigation bar, and disable selector drop down menu.
3. Change the sitemap item to this web resource.
Test
It looks similar to the URL method, but the source has been changed to web resource, and chevron symbol is hidden, now we can't select other views.
We can still click any of a record to open it in form, but the content will be loaded in the iframe. (It only works when we are selecting the sitemap item.)
