Hey Sal,
Sorry if I'm late and you've already found something, just seen this. Here's two I've been using, one free, one paid. This is the free one:
And the paid one can be found at the MQL5 Market if you search for 'Imbalance MTF'. It's pretty inexpensive, but the beauty of that one is you have buttons to see imbalances from any time frame on your trading time frame, or to turn them off completely to keep things neat. In the picture below I'm on the H4 with H4 imbalances in solid purple, D1 imbalances in orange/red, and H1 in gold. Hope this helps.
