[Python] How to display additional count near progress bar in Enquiry Screen?

I am working on Odoo 18 and need to modify the Enquiry Screen to display additional counts near the progress bar. The current progress bar already shows the Expected Revenue, but I want to add more details for better visibility.

Requirements


CHECK THIS IMAGES

Current view

Expected View

For the "NEW" Stage: The display format should be:

525K - 12 (10)

525K → Expected Revenue (already displayed)

12 → Total Enquiries for the Year

(10) → Count of enquiries currently in this stage

For all other stages: The display format should be:

525K - 6

6 → Count of enquiries currently in this stage

My Questions

1. Where should I modify the code to achieve this?
2. Should it be done in a custom module, or can it be handled via the XML views?
3. How can I fetch and display these counts dynamically for each stage in Odoo 18?
4. If it needs changes in OWL JS, how should I approach updating the progress bar component?

What I Have Tried


I checked the model (crm.lead or similar) but didn’t find an existing field that directly provides the total count of enquiries per year.

I explored the OWL JS components but am unsure how to modify the display logic near the progress bar.

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