The following is a list of "target" parameters that can be controlled in the RC-300 from various sources, including the EXP pedal, external footswitch, and so on.

Track 1

• Play Level
• Record Level
• Pan
• Output
• Play Mode
• Reverse
• Stop Mode

Track 2

• Play Level
• Record Level
• Pan
• Output
• Play Mode
• Reverse
• Stop Mode

Track 3

• Play Level
• Record Level
• Pan
• Output
• Play Mode
• Reverse
• Stop Mode

Rhythm

• Pattern
• Level
• Output

Memory

• Level
• Input Out
• MIDI Sync
• Overdub Mode
• Record Mode
• Tempo
• Tempo (Tap)—Phrase memory tempo controlled by tap input
• Single Track Play
• Track Change
• Reverb Level

FX

• Type
• Effect Control—Applies an effect suitable for the selected LOOP FX type
• Memory Increment
• Memory Decrement
• Loop FX On/Off
• FX Type Inc
• FX Type Dec
• Undo /Redo
• Track 1, 2, or 3 Undo/Redo
• Track 1, 2, or 3 Play/Stop
• All Play/Stop
• Track 1, 2, or 3 Clear
• Input Master Level
• Input Mic Switch
• CC#1-#31, CC#64-CC#95