What exactly other scope can do and in what form? What is exactly function that sems to be missiing?
It seems, that you havent done much with CAN bus. There are many IDs, that fly through the bus. If you want to watch just 2, you cant do this! That bad rigol could filter this as i would expect it in such a price range, but the rest after it is terrrible!
You are starting to be obnoxious.
I'm well aware how CAN works.
I have problem understanding what you want.
I have not got Rigol scope and have no intention to buy one to please you. I have no idea what exactly on that Rigol you are talking about.
As a side note, term filtering would be mostly used on already captured data to filter subset of results. Picoscope has that for instance.
In triggering we have masks that, when matched, generate triggers...
Are you talking about some kind of wildcards in trigger masks ?
If you want help, please explain in detail what exactly Rigol has ( explain how it works and what it does on that scope) and where it is and details how Rigol implemented that feature that you seem to like.
After you do that, we can see if somethin like that exists on Siglent.
If it doesn't and if it seems useful then we can make feature request to Siglent.
They listen to good input. but it has to be well explained.