The expandable accordions shown on the Profile tab on the Merchant Details page can be shown, hidden, and re-ordered for each User Class individually: 

To manage your merchant profile tabs open the Manage Merchant Profile Tabs page from the administration menu (Merchants > Profile Tabs):

To manage the tab settings for a specific User Class first select that class in the provided drop-down:

The page will now refresh and show the merchant profile tabs in the same order as the Sales Reps (i.e. the User Class selected in this example) will see them on the Merchant Details page:

You can now change the order of the tabs for the selected User Class by dragging and dropping each tab into an appropriate location on the page.

Each time you move a tab to another position the new tab order will be saved automatically. 

If needed, you can also hide a tab so it will not be visible to the current User Class.

Just click on the "Hide" button on the required tab and your change will be saved. Also the tab you've hidden will now be grayed out indicating it is no longer visible to the selected User Class. 

To unhide a tab, click on the Show button and it will become visible to the selected User Class again:

While editing a User Class you can also use the three buttons in the top right corner for copying, showing or hiding the merchant profile tabs en masse:

To copy the current settings to all user classes, click the Copy to all users button.

To show or hide all the sections for the current User Class at once, click Show all or Hide all.