Now, if you're eager to implement this feature in your own account, I've got you covered with a quick guide.

1. Login to your Bigin Account:
   Start by logging into your Bigin account using your credentials.
   

2. Navigate to Settings:
   Head to the "Settings" section usually, you can find this in the top-right corner.
   

3. Access Stages:
   Within Settings, locate and click on the "Stages" option from the left corner.

4. Go to stage transition rules:
   Look for the "Stage Transition Rules" option, usually found in the same menu. Click on it to access the rules configuration.

5. Select team pipeline & sub-pipeline:
   Choose the specific Team Pipeline and Sub-Pipeline for which you want to set up the checklist. This ensures that the checklist aligns with your team's workflow.

6. Create a new rule:
   Click on  "new rule" and initiate the process.

7. Specify "From stage" and "To stage"
   Define the transition you want to apply the checklist to by specifying the "From Stage" and "To Stage."

8. Name your checklist items
   You have the flexibility to name your checklist items based on your specific requirements. These could be steps or details that are crucial for the particular stage transition.

9. Mandate checklist items:
   One or all of the variables such as Notes, Fields & File can be mandated. This ensures that all necessary checks are completed before moving to the next stage. 

      10. Save your rule:
Once you've set up the checklist items and made them mandatory, click "Save" to apply the rule.