Fuse Bar Counter is a large, easy to read countdown for the current bar. It works with minute, second, tick and volume bars and shows the interval label (for example Bar 1m), a progress bar and two color states (Calm and Urgent), so you always know how much of the bar is left at a glance. Display only, it does not place or modify orders.

Technical support from the site: fuseindicators.com

Instructions for use & setup notes:
1. Import via Tools, Import, NinjaScript Add-On.
2. Add FuseBarCounter to any chart (Indicators window, FuseSuite folder).
3. Pick the size (Small, Medium or Large), the corner and offset, count down or count up, the Urgent thresholds and the colors. Optional sound at the start of a new bar or when the counter turns Urgent.
Supported bar types: Minute, Second, Tick and Volume. Other bar types show Unsupported bar type.

Link to documentation or video walkthrough: https://fuseindicators.com
Original author & source: Original work by Fuse Indicators (own code, not a conversion).