The 16.6 Allegro PCB Editor release contains two new selection options, lasso and path, which are available with commands that normally support temp groups; ‘Move’ and ‘Highlight’ are two examples of those commands. If working in an application mode, you can access these selection options from the RMB – Selection Set menu:
Read on for more details …
Let’s look at a few examples that illustrate these new capabilities.
The objective of this step is to change the line width of the diagonal segments of the phase bumps to 5.5 mils. Use RMB – Selection set to access the ‘Select on Path’ command:
Slowly draw a path that includes the diagonal segments:
When you reach the last segment, hover over any one segment. Then use the RMB to access the ‘Change Width’ command. Enter 5.5 for a width: 
Here’s a section of a part where you see a few red colored pins:
Check to see if you are in General Edit Application Mode. Use the RMB – Selection Set to access the ‘Select by Lasso’ command. Add a path around the red pins; you do not have to make a closed loop path:
Hover over any one pin, then use the RMB to access the Replace Padstack – Selected Instances command. Select ‘20C_smt24_mask_defined’ as an example from the list. This process might be helpful for a designer tasked with changing SMD padstacks associated with a BGA to either metal or mask defined:
I look forward to your feedback.
Jerry “GenPart” Grzenia