There is no ‘bus’ equivalent in the breadboard view.
(with exceptions) Inspector does not change properties within a single part. Instead, when two (or more) parts have the same family value, other property names that exist in the parts become selectable (drop down lists). Choosing a value from the lists swaps the current part for the one with the selected value. So with parts that have (in the fzp file)
First part
<properties>
<property name="family">my set of parts</property>
<property name="type">THT</property>
</properties>
Second part
<properties>
<property name="family">my set of parts</property>
<property name="type">SMD</property>
</properties>
Inspector will show a “type” dropdown that will allow switching between SMD and THT. The parts can use some or all of the same view image files when appropriate. If there are multiple properties that you want to select on, the number of needed parts can get large fast. If you have a part that can be 5V, 9V, or 12V, each with current ratings of 1A, 2A, 5A, that will need 9 parts to implement.
- 5V at 1A
- 5V at 2A
- 5V at 5A
- 9V at 1A
- 9V at 2A
- 9V at 5A
- 12V at 1A
- 12V at 2A
- 12V at 5A
Using the same family value, and different values of “voltage” and “current” combinations in each part.
The “part number” property is special. It can be modified directly, without needing a separate part for each variation.
In core parts, some properties have selectable lists, or editable values without multiple parts existing. That allows changing resistance, capacitance, voltage, and certain other properties. Those are ‘factory’ parts. The parts are actually created as needed, without storing all of the possible variations. Custom parts do not support that.
Some recent changes to the application are supposed to allow combining multiple parts into a single fzpz, but I have not tried it. If that works the way I expect, the fzpz file (a zip file) could contain the 9 fzp files for the above example, plus the needed view svg files. Which might be just 3 extra files. Or 2, if the part does not need a PCB view.