Yes. You may serve discovery documents electronically through the system. Pursuant to Rule Promulgation Order 07-04, Certificates Regarding Discovery need not be filed when discovery is served. Instead, a Certificate Regarding Discovery that has occurred in the case must be filed as an attachment if any of the following three pleadings are filed:

(1) a motion regarding discovery;
(2) an opposition to a dispositive motion based on the need for discovery; or
(3) a motion to extend Scheduling Order dates. SCR-Civil Rule 5(d). 

If Certificates Regarding Discovery are already in the court record, the Certificate Regarding Discovery may incorporate those certificates by reference and also list additional discovery, if any, which has occurred.

Discovery is not served on the court unless it is necessary to a motion regarding the discovery.