Disclosed is a method of communicating a message thread, comprising: receiving a message thread at a first device, the message thread comprising existing sub-messages; receiving input of a newly composed sub-message associated with the message thread; delineating each of the respective existing sub-messages from one another within the message thread; receiving selection of at least one delineated existing sub-message from the message thread through a selection interface for one of inclusion in and exclusion from a modified message thread; creating a modified message thread in accordance with the selection of at least one delineated existing sub-message, the modified message thread further comprising the new sub-message; and initiating communication of the modified message thread to a second device.