34. Where by these Rules any act may be done by any party in any proceeding, such act may be done either by the party in person, or by his legal practitioner, or by his agent (unless an agent is expressly barred under these Rules) Party may change legal representative 35. (1) A party to any cause or matter who sues or defends by a counsel, may change his legal practitioner without an order for that purpose, but and until notice of the change is filed and copies of the notice are served on every other party to the cause or matter and on the former legal practitioner of the party for the duration of the action. (2) A copy of the former legal representative shall remain the legal practitioner of the notice accompanied by an affidavit stating that the notice has been duly filed in the Registry shall also be filed. (3) The party giving notice may perform the duty prescribed by this order in person or by his new legal representative. Where legal representative- ceases to act 36. (1) Where a legal practitioner who has acted for a party in a cause or matter ceases to act and the party has not given notice of change in accordance with sub-rule 1 of rule 35 of this order, the legal practitioner may apply to the acting court for an order declaring that the legal representative has cease to be the one for the party in the cause or matter and the Court may make an order accordingly. (2) An order under sub-rule I of this rule shall not be made until the legal practitioner serves on every party to the cause or matter a copy of the notice otherwise he shall be considered the legal practitioner of the party for the remaining duration of the cause or matter. (3) An application for an order under this rule shall be made by originating motion supported by an affidavit stating the grounds of the application. (4) An order made under this rule shall not affect the rights of the legal representative and the party for whom he acted as between themselves. Address of party. 37. After an order is made under rules 35 or 36 of this order, the address of the party shall be his last known address or where the party is a body corporate, its registered or principal office for the purpose of the service on the party of any document not required to be served personally. ORDER 10 JOINDER OF CAUSES OF ACTION All causes of action may be joined 1. Subject to the following rules of this order, the plaintiff may unite in the same action or several causes of action; but if it appears that they cannot be conveniently tried or disposed of together, a