@Jack S Hello, maybe this script can be a reference to help. For sure @jetdv has a complete solution.

 

using System;
using System.Collections.Generic; // Add this for List<T>
using System.Drawing; // Add this for color and font
using System.Windows.Forms;
using ScriptPortal.Vegas;

public class EntryPoint
{
    public void FromVegas(Vegas vegas)
    {
        // Adjustable sizes
        int controlWidth = 160;
        int controlHeight = 25;
        int labelWidth = 80;

        // Create a form
        Form form = new Form();
        form.Text = "Move Event by Frames, Seconds, or Minutes";
        form.StartPosition = FormStartPosition.CenterScreen;
        form.Width = controlWidth + 40;
        form.Height = 200;

        // Set dark theme colors
        form.BackColor = Color.FromArgb(45, 45, 48); // Dark background
        form.ForeColor = Color.White; // White text

        // Set the font to Segoe UI
        Font segoeFont = new Font("Segoe UI", 10, FontStyle.Regular);
        form.Font = segoeFont;

        // Create a label for the ComboBox
        Label typeLabel = new Label();
        typeLabel.Text = "Select unit:";
        typeLabel.Top = 12;
        typeLabel.Left = 10;
        typeLabel.Width = labelWidth;
        form.Controls.Add(typeLabel);

        // Create a ComboBox for selecting frames, seconds, or minutes
        ComboBox typeComboBox = new ComboBox();
        typeComboBox.Top = 10;
        typeComboBox.Left = 90;
        typeComboBox.Width = controlWidth - labelWidth;
        typeComboBox.Items.AddRange(new string[] { "Frames", "Seconds", "Minutes" });
        typeComboBox.SelectedIndex = 0;
        typeComboBox.BackColor = Color.FromArgb(30, 30, 30); // Darker combo box background
        typeComboBox.ForeColor = Color.White;
        form.Controls.Add(typeComboBox);

        // Create a label for input
        Label label = new Label();
        label.Text = "Set Value:";
        label.Top = 50;
        label.Left = 10;
        label.Width = labelWidth;
        form.Controls.Add(label);

        // Create a numeric up-down control for input
        NumericUpDown inputBox = new NumericUpDown();
        inputBox.Top = 48;
        inputBox.Left = 90;
        inputBox.Width = controlWidth - labelWidth;
        inputBox.Minimum = 0;
        inputBox.Maximum = 1000;
        inputBox.BackColor = Color.FromArgb(30, 30, 30); // Darker numeric box background
        inputBox.ForeColor = Color.White;
        form.Controls.Add(inputBox);

        // Create a button to move backward (swapped with forward)
        Button backwardButton = new Button();
        backwardButton.Text = "Move Left";
        backwardButton.Top = 90;
        backwardButton.Left = 10;
        backwardButton.Width = controlWidth;
        backwardButton.Height = controlHeight;
        backwardButton.BackColor = Color.FromArgb(28, 28, 28); // Darker button background
        backwardButton.ForeColor = Color.White;
        backwardButton.FlatStyle = FlatStyle.Flat; // Flat style for a more modern look
        backwardButton.FlatAppearance.BorderSize = 1; // Thin border
        backwardButton.Click += (sender, args) =>
        {
            MoveEventsTogether(vegas, (int)inputBox.Value, typeComboBox.SelectedItem.ToString(), false);
        };
        form.Controls.Add(backwardButton);

        // Create a button to move forward (swapped with backward)
        Button forwardButton = new Button();
        forwardButton.Text = "Move Right";
        forwardButton.Top = 120;
        forwardButton.Left = 10;
        forwardButton.Width = controlWidth;
        forwardButton.Height = controlHeight;
        forwardButton.BackColor = Color.FromArgb(28, 28, 28);
        forwardButton.ForeColor = Color.White;
        forwardButton.FlatStyle = FlatStyle.Flat;
        forwardButton.FlatAppearance.BorderSize = 1;
        forwardButton.Click += (sender, args) =>
        {
            MoveEventsTogether(vegas, (int)inputBox.Value, typeComboBox.SelectedItem.ToString(), true);
        };
        form.Controls.Add(forwardButton);

        // Show the form
        form.ShowDialog();
    }

    void MoveEventsTogether(Vegas vegas, int amount, string type, bool forward)
    {
        Timecode offset;

        if (type == "Frames")
        {
            offset = Timecode.FromFrames(amount);
        }
        else if (type == "Seconds")
        {
            offset = Timecode.FromSeconds(amount);
        }
        else if (type == "Minutes")
        {
            offset = Timecode.FromSeconds(amount * 60); // Convert minutes to seconds
        }
        else
        {
            throw new ArgumentException("Invalid time unit specified.");
        }

        // Iterate over each track
        foreach (Track track in vegas.Project.Tracks)
        {
            // Get a list of all selected events on the track
            var selectedEvents = new List<TrackEvent>();
            foreach (TrackEvent trackEvent in track.Events)
            {
                if (trackEvent.Selected)
                {
                    selectedEvents.Add(trackEvent);
                }
            }

            // Move all selected events and their grouped events together
            foreach (TrackEvent trackEvent in selectedEvents)
            {
                // Move the selected event
                if (forward)
                {
                    trackEvent.Start += offset;
                }
                else
                {
                    trackEvent.Start -= offset;
                }

                // Check if the event is grouped and move all grouped events
                if (trackEvent.IsGrouped)
                {
                    foreach (TrackEvent groupedEvent in trackEvent.Group)
                    {
                        // Skip the selected event since it's already moved
                        if (groupedEvent == trackEvent)
                            continue;

                        if (forward)
                        {
                            groupedEvent.Start += offset;
                        }
                        else
                        {
                            groupedEvent.Start -= offset;
                        }
                    }
                }
            }
        }

        vegas.UpdateUI(); // Refresh UI to reflect changes immediately
    }

}