Greasy Fork

If nothing is happening for you after installing this and refreshing the page, add the following line near the top before the // ==/Userscript== line

// @run-at       document-start

I also modified mine to make the array like this for ease of future reference:

    // List of markers to change
    // EDIT THESE LINES ONLY. Example "o596", "o317";
    const keys = [
        "o128", // Geo Sigil
        "o596", // Natlan Mora Chest
        "o601", // Shattered Night Jade
        "o602", // Broken, Graffiti-Marked Stone
        "o639", // Tribal Secret Spaces
        "o641", // Courier's Trial Keystone
        "o647", // Totem Challenge
        "o666", // Oozing Core
        "o681", // Coagulation Pearl
    ];

    const targetFilenameStart = "markers_all"; // Filename of the markers file

    const allowMarkComment = 5; // Value to allow marking and commenting

(I've also included the suggestions of additions from another feedback)

Here are some additional ones you can add to the array if you want.

        "o317", // Interaction Rewards
        "o409", // Clusterleaf of Cultivation
        "o415", // Dendro Rock
        "o416", // Dendro Pile

I've included these changes and published a new version, thanks!