If you wish to create a conversation which follows on from an existing conversation then OfficeTalk lets you join the conversations into a conversation thread. You can do this in the following way:
Select the conversation that you wish to add to. Note that the conversation that you select must be either a non-threaded conversation (the title will read (1 of 1) ) or it must be the last conversation in the thread (the title will read (3 of 3), for example). You cannot join onto a conversation which is in the middle of a thread (for example if the title read (1 of 3) ).
Click on the conversation using the right mouse button and select Continue Thread from the context menu. A Conversation property sheet will appear with the subject field already filled out. Enter the body of the new conversation and press OK on the Conversation property sheet. The new conversation will be linked to the selected conversation.