01: Multiple Form Instances 1
Open Multiple Instances of a Form
New Form_CustomerF
Creating Collections
Adding Objects to a Collection
Using collections in VBA  
Form object declaration  
Setting forms visible in VBA  
Setting form RecordSource dynamically  
Using collections to manage forms  
Initializing and setting collections  
Handling object variables in VBA  
Global collections in VBA  
Public variables for form instances

02: Multiple Form Instances 2
List Open Forms
Make Sure Collection is Initialized
Dealing with Closed Forms
Tracking Forms with a Key Value
Handling closed forms  
Tracking forms with key values  
Counting forms in the collection  
Generating a list of open forms  
Using For Each loop  
Using counter loop  
Error handling in form collection  
Form load event for collection check  
Creating a custom key for forms  
Storing form key with tag property  
Setting form key with unbound textbox  
Tracking forms with their order  

03: Multiple Form Instances 3
Don't Open Same Record Twice
Give a Specific Form Focus
Cascade the Forms when Opened
Preventing duplicate form instances  
Checking if a customer form is already open  
Handling form errors with on error resume next  
Using For Each loop to iterate open forms  
Setting form focus on already open forms  
Exiting subroutine upon condition  
Using error handling for form operations  
Modifying collection handling in global scope  
Positioning forms with form.move method  
Cascade positioning of open forms  
Creating a "close all" button to clear collections  
Handling collections and memory optimization

04: Multiple Form Instances 4
Kill the Collection if All Forms Closed
Tips from GPT
Resetting collections when all forms are closed
Looping through collection forms to check status
Using counter-based loops for form checking
Handling errors when accessing form properties
Cleaning up collections to free memory
Creating new collection instances
Checking for open forms using form properties
Using Boolean flags to track open forms
Implementing form error handling and recovery
Conditional collection reset logic based on form status