4. The multimodal input system of claim 2 , wherein the dictation module is further configured to send a session control command instructing the document-specific keyboard handler to start or stop reflecting the keyboard input to the dictation module for display on the scratchpad GUI, based on a set of predetermined rules.
4. The multimodal input system of claim 2 , wherein the dictation module is further configured to send a session control command instructing the document-specific keyboard handler to start or stop reflecting the keyboard input to the dictation module for display on the scratchpad GUI, based on a set of predetermined rules. 7. The multimodal input system of claim 4 , wherein the rules include routing the keyboard input to the document according to a user setting or a user command.