Go to Students > Assessments > DfE Assessments.
Click into the assessment you would like to input marks for and click the Input Marks button.
Next, to the student's name click into the blank box to select a grade to input.
You can also bulk upload marks by ticking the box beside students who all have the same mark and bulk updating these.
To add students requiring extra help straight into interventions, you can complete bulk actions. Just tick the boxes on the right-hand side then click the blue pencil icon.