Add custom time window mode to existing open source TradingView Indicator

I am looking for an experienced Pine Script (v5/v6) developer to extend an existing TradingView indicator.

Indicator: Volume Profile and Volume Indicator by DGT
https://www.tradingview.com/script/Qwj6TO5I-Volume-Profile-and-Volume-Indicator-by-DGT/

Currently, the indicator supports two calculation modes for Profile Lookback Range:
1. Fixed Range
2. Visible Range

I need a third mode to be added:
3. Custom Time Window Range (specific time interval within a single day)

When Custom Time Window is selected:

1. User Inputs (new settings)
Add new inputs in the settings panel:
- Start Time (Example: 10:45)
- End Time (Example: 11:21)

2. Logic
The indicator should calculate the Volume Profile only inside this selected time window:
- Works specific time interval within a single day (example: 10:45 - 11:21).
- Must handle time windows that cross midnight correctly.
- Should work on any timeframe (1m, 5m, 1h, etc.).

3. UI Requirements
- Clean integration into existing settings.
- New inputs should be active only when "Custom Time Window" is selected (if possible).
- Do not break existing Fixed Range and Visible Range behavior.