Problem Description

In ProjectWise Explorer - Folder Properties - View tab, the Global view assigned to this folder option is greyed out

Steps to Resolve

1. To change the default global view on a folder, you must be a member of the administrator group

From help file:

If you are an administrator, you can set the default view for a particular folder, for all users. You can also set the default view for the Document Properties tab of the preview pane, which displays when users select documents in this folder.

As a user, you can either leave the default view assignments for a folder as is, or you can override them by assigning different views for this folder. What you set here only affects the user you are logged in as and does not change the default view of the folder for other users