In order to make group signals,

• Expand the signals to bits
• Select the bits to group
• Right-Click =>Group => New

Then, you will find a new signal named "Group".
Expand "Group" to bits and make sure corresponding bits are grouped.

If you would like to add some signals after making new group signal, insert/cut/paste the signal. Next example shows adding "clk" to group.

Then Select the all signals with the top of Group signal to edit

• Right-Click =>Group =>Done

Result is as follows.

If you prefer to get bit-reversed,

• Select the signals to edit with the top of Group signal to edit
• Right-Click =>Group =>Done with bit reversed

Bit-reversed Done.

To change the name,

• Right-Click =>Group=> Name

VCD signals also can be grouped.however VCD group must consist of only VCD signals.

Add bit select / part select of vector as indivisula waveform signal.

• First expand bit vector by DblClicking the vector
• Select the signal
• Right Click , Select Group...-> Bit /PartSelect with Name
• Ex. From 3.69B a[2:1] part select becomes a2_1

• You can add part select of the vector by selecting multiple rows as well..
• If you would like to disable range of vector display, check the option of "Disable display of range " on project settings.
• You can edit the name of new signal by Change Name on menu of Group..
• This is useful for taking bits of a signal vector. To merge plural signals, follow the sections below.