I bought a Portfolio (Lowe's brand) Motion Sensing light fixture the other day and was RTFM to make sure there was nothing strange about the installation/set up that I should be aware of. When I got done RTFM, I realized that they didn't mention anything about how to override the motion sensor and turn the fixture on manually. We use that feature with our existing fixture and didn't want to lose it.
I called their Customer Service department and the rep told me that he wasn't sure if the model I bought has that feature. He mentioned that for the models that specifically include that feature, the override method was a rapid toggle of the power switch Off-On-Off-On. I was free to try that if I wish.
I took the fixture down to workshop, plugged my suicide cord into a power strip, and tested the motion sensor, timer, etc. Once I was sure that everything work properly, I toggled the power strip Off-On-Off-On. The fixture flashed 3 times and then stayed on way past the timer setting. I then manually toggled the power strip Off-On to reset the fixture to Motion Sensing mode.
None of the above steps were even hinted at in the manual. Since the engineers obviously built the override logic into the circuitry, even including a "flash 3 times" indicator, you would think that the tech writers would have included the instructions in the manual.
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