In SourceTree, go to Tools> Options> Tab: Diff.
In the External Diff / Merge panel, enter the following data:
External Diff Tool: Custom
Diff Command: C:/Program Files/Devart/Code Compare/CodeCompare.exe
Arguments: $LOCAL $REMOTE
Merge Tool: Custom
Merge Command: C:/Program Files/Devart/Code Compare/CodeMerge.exe
Arguments: -MF "$LOCAL" -TF "$REMOTE" -BF "$BASE" -RF "$MERGED"

Alex N.
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