It used to be possible to move servers on your server list by holding down shift and pressing the up and down arrows. This doesn't seem to work in any of the 1.14 versions.
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Thank you for your report!
We're actually already tracking this issue in MC-151354, so I resolved and linked this ticket as a duplicate.
However, that ticket has already been resolved. Depending on the resolution, that can mean that it either will be fixed in the next version, or that it is not considered a bug and won't be fixed.
If you haven't already, you might like to make use of the search feature in the future to see if the issue has already been reported.
Me also. In Windows 10.