Change a copied via net and via arrange

 vias are fundimentally a routed object so when you copy vias unless you check the "retain net of vias" checkbox in the Options window they will take on the netname of the shape they first come into contact with. There is a default cadence skill file located in C:\Cadence\SPB_16.6\share\pcb\examples\skill\cmds called change_net_on_vias.il which can help to change a via from one net name to another. You'll need Allegro to be able to load skill (or use an allegro.ilinit file to pre-load skill). You can then type change_vianet at the command line and pick the via to change..

For alignment the best way is to copy the vias using the Edit - Copy then look at the Options menu and setup the Rectangular copy options so you place them in line in the first place. The align command currently only works for components.  

I created allegro.ilinit file and made new variable  ALLEGRO_PCBENV both in System and user variables. I set the path: C:\cadence\setup and placed some .il files like Hello.il and change_net_on_vias.il in skill folder. Whenevre I run allegro.ilinit and others I only see "nil" the next line after running that:

Skill > allegro.ilinit
nil
Skill > Hello.il
nil
Skill > change_net_on_vias.il
nil

You need to type the function name on the command line.

eg.

helloWorld()