For different background positions between the unknown and standard samples you will have to use sample setups with the different background positions. But to update is easy. Just make a new unknown sample using the original unknown sample setup, update it, then add this updated sample as the sample setup for new unknowns. Do the same for the standard.
No need to type anything. When you re-peak the spectrometer, the new peak position is already loaded for that sample, which then becomes the new sample setup using the Add to Setups button in Analyze! Same applies to adjustments to the PHA settings.
Well, I think there is still a lot of typing, unless I am missing the point. So I have two sample setups. One with all the backgrounds for the standards and one with all the backgrounds for the unknowns.
New day, new luck: So I load the sample setup for the unknowns into a new unknown and update all the peak / PHA. So all the new data is there. But then, how do I get this new data into the sample setup for the standards?
I can make another new unknown, which will also contain the new peak / PHA data, but it will NOT contain the backgrounds setup. I would need to modify this and change all the backgrounds from the unknown setup to standard setup.
Or, I could load the sample setup for the standards, which would contain the correct background setup. But then it would contain the old peak / PHA data.
So whatever I do, I will have to change lot of things manually. Unless there is a third option I am not aware of.
For your situation the easiest way to do this is to go to the Acquisition Options dialog and set your standards to off-peak background acquisition (and specify the off-peak positions for the standards), and for the unknowns set the background acquisition to multi-point background (and set the MPB bgd positions for the unknown sample). Then you'd have one sample setup for both your standards (off-peak) and unknowns (MPB). I think this could work for you.
No need for the "shared" multipoint bgds in this case.
Hm, wouldn't it acquire millions of backgrounds then? For example for each element 4 multi point backgrounds? For 6 elements that would mean 24 backgrounds? Or am I not getting something?
Actually for my case the best would be pre-acquisition shared MPB per spectrometer for unknowns.
1) For the standards I specify normal off-peak backgrounds in Acquisition options.
2) For the unknowns I select the elements for SP1 LiF, let's say 6 elements, a forest of peaks.
3) I make a spectrum over the whole range of the 6 elements of interest to find good background spots.
4) I select let's say 4 background positions over the whole range of interest and enter them into some window. In Acquisition Options I select "Shared pre-acquisition backgrounds".
5) Now PfE will go and measure the peaks of my 6 elements and just the 4 backgrounds specified and makes them directly available as shared backgrounds for all 6 elements.
6) Happy. Standards measured traditionally, also quick standards possible. Unknowns need just to measure 4 backgrounds. Only one sample setup necessary.