mb-backup-manager/scripts/backupOnBeforeInit.js

var resp = api.env.control.GetEnvs();
if (resp.result !== 0) return resp;
var envs = [];
var nodes = {};

for (var i = 0, envInfo, env; envInfo = resp.infos[i]; i++) {
    env = envInfo.env;
    if (env.status == 1) { // Check if environment is active
        for (var j = 0, node; node = envInfo.nodes[j]; j++) {
            // Filter nodes by 'storage' nodeGroup
            if (node.nodeGroup === "storage") {
                var envName = env.envName;
                nodes[envName] = nodes[envName] || [];
                if (!nodes[envName].some(n => n.value === node.nodeGroup)) {
                    nodes[envName].push({
                        value: node.nodeGroup,
                        caption: (node.displayName || node.name) + ' (' + node.nodeGroup + ')'
                    });
                }
            }
        }
        if (nodes[envName] && nodes[envName].length > 0) {
            envs.push({
                value: env.envName,
                caption: (env.displayName + " (" + env.envName + ")" || env.envName)
            });
        }
    }
}

if (envs.length > 0) {
    jps.settings.main.fields[1].values = envs;
    jps.settings.main.fields[1].default = envs[0].value;
}

import java.util.TimeZone;
var zones = toNative(TimeZone.getAvailableIDs());
var values = {};

for (var i = 0, n = zones.length; i < n; i++) {
    var offset = TimeZone.getTimeZone(zones[i]).getRawOffset() / 3600000;
    var m = offset % 1;
    if (m != 0) m = Math.abs(m * 60);
    if (m < 10) m = "0" + m;
    var h = Math.floor(offset);
    if (Math.abs(h) < 10) h = h < 0 ? "-0" + Math.abs(h) : "+0" + h; else if (h >= 0) h = "+" + h;
    values[zones[i]] = zones[i] + (zones[i] == "GMT" ? "" : " (GMT" + h + ":" + m + ")");
}

jps.settings.main.fields[0].showIf[2][2].values = values;
jps.settings.main.fields[0].showIf[2][2].value = "GMT0";

return {
    result: 0,
    settings: jps.settings
};