### What problem does this PR solve?
Fix: Fixed the issue that the condition of deleting the classification
operator cannot be connected anymore #3221
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
Feat: Modify the anchor point positioning of the classification operator
node #3221
### Type of change
- [x] New Feature (non-breaking change which adds functionality)