A method for conducting a communications session (e.g., a teleconference) may include: displaying, by a client device, a communications interface that may include a first canvas, a second canvas, and a content browser. The first canvas may be arranged to display a media stream. The second canvas may be arranged to display a sequence of content items that may be provided by a communications system (e.g., a teleconferencing system). The content browser may be arranged to display identifiers for one or more files that are associated with the teleconference. The method may further include detecting a first input that moves a file from the content browser onto the second canvas, and in response to the first input, transmitting from the client device to the communications system, an instruction to generate a new sequence of content items based on at least a portion of the file.