1.0 Adding a clock, signal, or bus, or separator

	- clk, sig, or bus icon

The Hi-Z icon   allows you to draw a high-impedence or middle line onto the waveform. Use your left mouse and click on the cycle that you want to draw in the middle (neither high or low).

The bus icon   allows you to draw a bus transition (both high and low at same time). Click your left mouse button onto the cycle that you want to create the bus transition. If you want to clear a bus transition, then click on the cycle twice.