In order to set permissions for the Pages tab you need to go to Administration->Permissions click on "by Role or User". Now from the left menu choose your custom role and scroll down in the right pane until you reach Widget Templates section. You will see a Pages sub-section in it, where you can add the wanted permissions. Please keep in mind that assigning only the "View" permission won't give you access to the Pages tab since it refers to the frontend pages.
Next step is to go to the Pages tab and click on Permissions for all pages on the right hand side, where you need to assign your role to the required permissions.
Take a look at this video where I create a role and assign permissions for view, edit, and delete of pages. You may want to check out our Documentation for more information on managing permissions.
In case of 2+ roles assigned to one user the permissions from both roles are combined, so in case there is no explicit denying of a page you should be able to access it. If one of the roles have permissions, but the other have explicit denying for a page, the page won't be accessible since denying has more priority.
In order to give access to a specific page you need to go to Pages tab and click on the Actions menu for the corresponding page. Choose Permissions and break the inheritance of the page. From there you can specify the permissions you need to for that particular page.
I hope this helps.
Thank you cyril,
This fixed the problem to me!!!
Again someone having problems with this and wasting time. Still don't get it why it has to be true out of the box?
...typo I know, but "enraging" is the perfect word for you to have used :)