Rolling Over and Transferring Old Accounts

• How do I start a transfer to my Rocket Dollar IRA?
• Can I roll over old employer 401(k) plans and other individual retirement accounts into a Rocket Dollar Solo 401(k)
• I already have a Solo 401(k) plan already... can I transfer or convert that to a Self-Directed Solo 401(k) at Rocket Dollar?
• How do I fund or transfer retirement dollars to my Solo 401(k)?