In order to see data from different MLS's, you should link (or merge) your accounts.
Note: Please make sure you are in the profile/account that you want to be the primary one because the profile you perform these steps in becomes your primary profile.
Click on the My Profile
Under the 'Log in Information' section, click on Add Profile
Search by either last name or email as displayed in your MLS, then click Search
Select the profile(s) you would like to link
Click the Link button, which will send requests to the email addresses on file for those accounts to confirm.
Linked profiles will not appear in your 'My Linked Profiles' section until you have confirmed the requests sent to the email addresses on file for those accounts. This process will allow you to access all of your information from a single login and is explained in detail here