It is the same as the operation method of a general editor. A caret moves by the left click of a mouse. Moreover, a frame can be selected if a mouse is moved with a left click carried out.
A popup menu is expressed as a right click.
A caret (bar which blinks by black and white) can be moved by the following key operation.
| ← | Move to left | 
| → | Move to right | 
| Ctrl+← | Scroll to 1 frame left | 
| Ctrl+→ | Scroll to 1 frame right | 
| ↑ | Move to 1 stream up | 
| ↓ | Move to 1 stream down | 
| PageUp | Move to 1 page left | 
| PageDown | Move to 1 page right | 
| Ctrl+PageUp | Move to left of page | 
| Ctrl+PageDown | Move to right of page | 
| Home | Move to start of stream | 
| End | Move to end of stream | 
The range which moved when the caret was moved pushing the Shift key can be selected. The selected changes a color. Selection of a character will be canceled if pushing Esc key or a caret is moved without pushing the Shift key.
The selection is deleted, when the frame is selected and a frame is pasted.
A frame can be deleted by the following key operation.
| BackSpace | One frame in left of a caret position is deleted. | 
| Del | One frame in a caret position is deleted. | 
| Ctrl+BackSpace | Frames on the left of a caret position are deleted. | 
| Ctrl+Del | Frames on the right of a caret position are deleted. | 
The selection is deleted, when the frame is selected and the above-mentioned key is pushed. Any frames other than the selection are not deleted.