I could not find documentation specifically about adding components to a breadboard model in Flux, which likely means that exact “breadboard-style placement” workflow isn’t supported as a distinct feature.
The most relevant doc entry I found related to what you want (getting parts into your design, then into the board view) is:
Adding Components to Your Design
“When you find a suitable component in the search results, you can add it directly to your design by:
Clicking on the "Add to Design" link in the search results
Selecting the appropriate schematic symbol if multiple options are available
If you meant “place components onto the PCB view (with the breadboard 3D model visible)”, tell me that and I’ll pull the most relevant PCB-view doc entry I can find.