Replay an action more than once.

// Repeat action N times scriptUI GUI.jsx
// v1.1 - 13th October 2024, Stephen Marsh
// Based on:
// https://community.adobe.com/t5/photoshop-ecosystem-discussions/repeat-action-x-times/m-p/14840325


#target photoshop

// Create the ScriptUI dialog
var dlg = new Window('dialog', 'Repeat Action N Times (v1.1)');
dlg.orientation = "column";
dlg.alignChildren = ["fill", "top"];
dlg.spacing = 10;
dlg.margins = 16;

// Dropdown for parent action sets
dlg.add('statictext', undefined, 'Select Action Set:');
var actionSetDropdown = dlg.add('dropdownlist');
actionSetDropdown.selection = 0;

// Dropdown for child actions
dlg.add('statictext', undefined, 'Select Action:');
var actionDropdown = dlg.add('dropdownlist');

// Input for number of repetitions
var inputGroup = dlg.add("group");
inputGroup.orientation = "row";
inputGroup.alignChildren = ["fill", "center"];
inputGroup.spacing = 10;
var inputLabel = inputGroup.add("statictext", undefined, "Repeat Count:");
var inputField = inputGroup.add("editnumber", undefined, "2");
inputField.characters = 10;

// OK and Cancel buttons
var btnGroup = dlg.add('group');
btnGroup.orientation = "row";
btnGroup.alignChildren = ["fill", "center"];
btnGroup.spacing = 10;
var cancelBtn = btnGroup.add('button', undefined, 'Cancel');
var okBtn = btnGroup.add('button', undefined, 'OK', { name: "ok" });

// Make buttons equal width
okBtn.size = cancelBtn.size = [100, 30];

// Function to get available action sets
function getActionSets() {
    var actionSets = [];
    var setCounter = 1;
    while (true) {
        try {
            var ref = new ActionReference();
            ref.putIndex(charIDToTypeID("ASet"), setCounter);
            executeActionGet(ref);
            var desc = executeActionGet(ref);
            actionSets.push(desc.getString(charIDToTypeID("Nm  ")));
            setCounter++;
        } catch (e) {
            break;
        }
    }
    return actionSets;
}

// Function to get actions from a specific action set
function getActions(actionSet) {
    var actions = [];
    var actionCounter = 1;
    while (true) {
        try {
            var ref = new ActionReference();
            ref.putIndex(charIDToTypeID("Actn"), actionCounter);
            ref.putName(charIDToTypeID("ASet"), actionSet);
            var desc = executeActionGet(ref);
            actions.push(desc.getString(charIDToTypeID("Nm  ")));
            actionCounter++;
        } catch (e) {
            break;
        }
    }
    return actions;
}

// Populate the action set dropdown
var actionSets = getActionSets();
for (var i = 0; i < actionSets.length; i++) {
    actionSetDropdown.add('item', actionSets[i]);
}

// Select the first action set by default
if (actionSets.length > 0) {
    actionSetDropdown.selection = 0;

    // Populate the actions dropdown with actions from the first set
    var firstSetActions = getActions(actionSets[0]);
    for (var i = 0; i < firstSetActions.length; i++) {
        actionDropdown.add('item', firstSetActions[i]);
    }

    // Select the first action by default
    if (firstSetActions.length > 0) {
        actionDropdown.selection = 0;
    }
}

// When the action set is changed, update the action dropdown
actionSetDropdown.onChange = function () {
    actionDropdown.removeAll();
    if (actionSetDropdown.selection) {
        var actions = getActions(actionSetDropdown.selection.text);
        for (var i = 0; i < actions.length; i++) {
            actionDropdown.add('item', actions[i]);
        }
        if (actions.length > 0) {
            actionDropdown.selection = 0;
        }
    }
};

// OK button behavior
okBtn.onClick = function () {
    var inputValue = parseInt(inputField.text);
    if (isNaN(inputValue) || inputValue < 1) {
        alert("Please enter a valid whole number greater than 0 for repetitions.");
        return;
    }
    if (actionSetDropdown.selection && actionDropdown.selection) {
        dlg.close();
        executeActionMultipleTimes(actionDropdown.selection.text, actionSetDropdown.selection.text, inputValue);
    } else {
        alert("Please select both an Action Set and an Action.");
    }
};

// Cancel button behavior
cancelBtn.onClick = function () {
    dlg.close();
};

// Function to execute the selected action multiple times
function executeActionMultipleTimes(actionName, actionSet, count) {
    try {
        app.doProgress("Executing action '" + actionName + "' " + count + " times", "executeActionProgress('" + actionName + "', '" + actionSet + "', " + count + ")");
    } catch (e) {
        alert("Error executing action: " + e);
    }
}

function executeActionProgress(actionName, actionSet, count) {
    for (var i = 0; i < count; i++) {
        app.doProgress("Execution " + (i + 1) + " of " + count, "app.doAction('" + actionName + "', '" + actionSet + "')");
        if (app.playbackDisplayDialogs == DialogModes.ALL) {
            app.changeProgressText("Action '" + actionName + "' completed " + (i + 1) + " of " + count + " times");
        }
    }
}

// Show the dialog
dlg.layout.layout(true);
dlg.layout.resize();
dlg.center();
dlg.show();

​@Bentley B 

An action can certainly do this, however, this is something that is more flexible with scripting.

It’s hard to comment without seeing the expanded action steps.

I’ll post the scripts.

On your particular use case, there was a brief period where “stair interpolation” for upsizing was briefly popular (around 2002), however, it’s now generally accepted that resizing in a single step is better, YMMV.

I’m guessing it will be something to do with the end state of the action, but I can’t think how an action that used to work before a Windows update now doesn’t.  Does the action use any shortcuts perhaps?  Shortcuts can depend on which workspace you are using.

Windows updates can certainly be a PITA.  I could not get iTunes to see my iPhone last night, but the phone invited me to trust the computer, so the cable was OK.  It turned out that Windows had arbitrarily installed Apple Devices on my Windows 11 system.  Removing that from Settings > Apps > Installed Apps fixed the problem.  It might have been an iCloud update and not Windows, but it’s annoying how something you have used for years becomes broken through a mega corporation’s attempt at controlling how you work.