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ReaScripts: Region Render Matrix Pack


The Region Render Matrix is one of the most valuable REAPER feature for game audio, sound design, sample library creation, and sample-based virtual instrument editing.

Thing is that there are only a few actions related to this feature, and only 4 are available on the action list.

This script pack adds new actions for letting you set your RRM faster and more easily. These can be used as building blocks of custom actions for even more advanced setting like “Set only parent tracks in the RRM” etc…

For advanced workflow with the RRM, you can check the ReaperBlog/Maris Tammik video: Advanced Game Audio SFX Render Workflow.

Pack Content



Various scripts of the pack in action!

Update (2020-28-08): New scripts for edit cursor position

These comes for selected tracks and master, with add and remove versions.

Demo of the add selected tracks to RRM at edit cursor position.


Remove region render matrix entries containing no items for selected tracks

This script allows to remove unwanted RRM entries.

(Thanks Soundiron for initial sponsor of this script dev!)

Add regions matching name filter to render matrix

Add regions matching names filter and time selection area (facultative).

Thanks schapps for initial sponsor!

Add or remove regions with chosen pattern in their name from render matrix

A more advanced version of the add by filter above, which can add or remove regions from RRM for selected tracks, unselected tracks, master tracks independently.

Remove selected items outside region render matrix (NEW: 2023-02-15)

This action is meant to be used after my Script: X-Raym_Split selected items at regions.lua free script.

Script in action.

Feature Requests

Miss a function? Let me know!


This pack can be installed and auto-updated with the free ReaPack REAPER extension with a custom link related to your licence, or via regular Zip download.
After purchase, detailed installation instructions will be provided here and on the dedicated Purchase Confirmation page.
License are valid lifetime. You will be able to enjoy updates and new scripts added to the pack.


By purchasing this product, you are supporting my free scripting. Thanks!



  • Personnal use, you don't get money from your work, you are an individual, a student, or a non-profit organization.

  • Your work for a small business company.

  • You are a big business company with a team of more than 5 people and this script will be part of your main workflow.