Background : ModelSim v10.4d installed with quartus v16.0

I was a Cadence Incisive user, now have to pass to mentor ModelSim, but with ModelSim I can't find a way to get all signals' data before adding them to the waveform window.

For example,

In an .do(tcl) ModelSim simmulation script, a typical flow could be:

```
1,vcom : compile all sources files and testbench
2,vsim : load testbench for simulation
3,view structure/signals/wave : open some windows
4,add wave : add signals to waveform window
5,run xx us : run simulation for a certain time

```

with this flow, I have to re-do step 5 each time adding a signal to waveform window, or it will show me "NO DATA" for that newly added signal.

So I wonder if it's possible that we skip step 4, do step 5 just once to obtain all signals' simulation data, then we choose signals to send to waveform window, and we have every signal's data without re-doing the "run".