highlight net from Navigator

First, it already does select the entire net when you select in the navigator:

If you want that to be persistent, you can probe it by using the right mouse button menu as follows:

For the solder dot, you can do that using Check->Find Marker. The Zoom to Marker makes it even easier:

Not sure you necessarily want to remove the solder dot because it then would mean that the horizontal and vertical wires are not connected any more. The warning comes wherever there is a crossover like this - you can avoid that either with a jog in the wires so you don't have a vertical line intersecting with a horizontal line, or using Check->Rule Setup, on the Physical tab, you can tell it to ignore Solder on Crossover to avoid it producing the warning.

Andrew.

Thank you. That Zoom to Marker is great. As for net highlighting it's some how different in my case. 
As you see from this image of highlighting Vout, in my case it just makes a blue dotted line in the net so it's really hard to notice in a big circuit. 
In your example, entire net color is changed but in my case only a thin dotted line is inserted when using probe like that. 

In your setup, the packets for the layers y0 drawing through to y9 drawing (not sure which you probed with) are set to single width dashed lines. Since you've increased the width of wire/drawing, you might want to consider increasing the width of y0 drawing through to y9 drawing and also changing to be solid rather than dashed lines. Otherwise you end up with a thin dashed line on top of a thick solid line, which makes it hard to see.

Andrew.

That works well. However, you have to manually go to probe every net. Is there any method to highlight it bold whenever I click on a net from Navigator? 
Also how to restore the default setting for those things? Sometime I did wrong and want to start from beginning. 
I don't see any default button there. 

It already does highlight the entire net (usually in white) when you select it in the navigator. If you want it to stand out more, go to Options->Display and turn on Dimming (on the right bottom of the form). Then when you select a net in the navigator, that will be highlighted and everything else dims (you can control the intensity of the dimming).

Not sure what you mean by "those settings". Which are you expecting to be reset to default? You say "I don't see any default button there". Where?

Andrew.

I just tried and it works perfectly. Also the feature Zoom to Marker is awesome too. How can I not know those nice features and have to go to all corner to see warnings for a long time. 
For the default I meant all settings from Resource Display Editor.  Also somehow some setting from Resource Display Editor gone when I exit Cadence tools. For some nice features like making wire bold and coloring I'd like to set it fix so I don't have to set it again every time I run the tool. 

If you've not saved the settings in the Display Resource Editor, then File->Reinitialize within the Display Resource Editor will reset everything back to how it was.

If you've saved, you may need to remove any display.drf you've saved in the current directory (keep a backup just in case) before reinitializing. However, note that if the display.drf was loaded by the PDK doing a drLoadDrf("some file") then the reinitialize won't honour that - you may just need to quit and restart Virtuoso.

Andrew.