Yes, your MSS account allows for advanced regular contribution payments.
💳 Through credit & debit cards
Through the "Advance Contributions" transaction. In this transaction you should enter the number of contributions you want to merge and pay. This will automatically show the total amount. After this, select when you would like to reinstate the regular contributions. The maximum amount permited for card payments is USD 15,000.
🏦 Through wire transfer
Request this through your activity panel or to your Financial Adviser.