Kenny,
Custom probes are what you use to scale Pico for units of measure using something other than the standard test leads.
For example the current probe. You tell Pico you attached a current probe and what the setting is by choosing the appropriate custom probe. Then the scale is in amps.
Pico comes with some. You can import, make, grab, others for your custom probe library.
The built in WPS probes can be a bit of a problem because they try to scale based on your units selection in preferences. You also cannot copy them into your library without breaking them totally.
So, we don't recommend they be used. We have our own sets of WPS probes that don't act that way. They just work.
We have many pre-made custom probe sets for our Picogroup members.
I know you just got a WPS though....so....check your email.
There is so much more.....Not just custom probes, but way more stuff than you can imagine right now. So....here is a taste. There is nothing better you can do to expand your PicoScope knowledge and skills than to be a part of the Autonerdz Picogroup.
Edit....Your email you have on the forums here is no good....so...you won't get the probes. I tried.....