Change weights via method instead of GUI during test

[dafeda]

Test has been flaky locally on mac and this seems to resolve it.

Pre review checklist

• Added appropriate release note label
• PR title captures the intent of the changes, and is fitting for release notes.
• Commit history is consistent and clean, in line with the contribution guidelines.
• Updated documentation
• Ensured new behaviour is tested

Adding labels helps the maintainers when writing release notes. This is the list of release note labels.

[codecov-commenter]

Codecov Report

Merging #5198 (4f8a122) into main (4eb9658) will increase coverage by 12.19%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##             main    #5198       +/-   ##
===========================================
+ Coverage   60.18%   72.37%   +12.19%     
===========================================
  Files         394      394               
  Lines       27436    27436               
  Branches     2007     2007               
===========================================
+ Hits        16512    19858     +3346     
+ Misses      10360     7014     -3346     
  Partials      564      564               

see 116 files with indirect coverage changes

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[andreas-el]

Even better! 👍