📝  Summary
This request is to improve the horizontal scrolling of the main panel when building custom reports in the report builder.

✨ Details
Currently when you are building reports in the report builder, the main panel where the customisable columns are present, can be confusing to users as it's not clear you can scroll horizontally. If you have a long list of preview results, you have to scroll down to the bottom of the list, to move left/right (I'm aware you can middle mouse click - but this is not clear for most users). You also have to scroll back to the top to check the column headers again. This is evident in a short example in the linked video.

Potential solutions are to fix a horizontal scrollbar at the bottom of the users desktop window. Another option (on top of previous suggestion) is to have sticky headers for the column headings so as you scroll down the column headers remain.

📓  Additional Information
Quick video was taken from MWP 4.1.2. (Attached after ticket creation as no option to upload).

📖 User Story
As a... user building reports in the report builder.
I want to... more easily be made aware there is an area I can horizontally scroll to in the main panel. And be able to easily horizontally scroll my previewed report without having to scroll to the bottom of the report preview each time; tot hen have to scroll back to the top to view the column headings.
So that... building reports is clearer and easier to follow as I make changes to column headings and check results.