Hide the trash, duplicate and add buttons globally

Another way to work around this is to uses dashboards/pages to create a UI for your users to use. That way you only need to hide it tables that they actually open.

The following works in the iPhone app. I don't have an Android phone so I can't test for that.

dialog("Custom CSS", html("
    <script>
        const customCSS = '.hud-menu-button.i-32-24.i-light-grey.i-setting-print{display:none;}.hud-menu-button.i-32-24.i-light-grey.i-setting-trash{display:none;}.hud-menu-button.i-32-24.i-light-grey.i-setting-copy{display:none;}.hud-menu-button.i-32-24.i-light-grey.i-setting-add{display:none;}';
        const customSheet = new CSSStyleSheet();
        customSheet.replaceSync(customCSS);
        document.adoptedStyleSheets = [customSheet];

        var interval = setInterval(() => {
            var btn = document.querySelector('.nx-alert .nx-button-text');
            if (btn) {
                btn.click();
                clearInterval(interval);
            }
        });
    </script>
"), ["close"])

Where to put the script:

1. Open your database
2. Select the wrench icon
3. Select the 4-square icon
4. Select options
5. Select Trigger after open and paste the script in the text area
6. Save the changes
7. Exit your database since the script only runs once after the database is initially opened
8. Open your database