Thank you so much everyone for your advice, I'm glad that it is possible to do! :)

I didn't try what brunopalermo suggested yet, as I'm not sure if this is the best way or not yet, but thank you for the example, I may try it if everything else will fail! (there gonna be lots of head-scratching for me).

Since I'm a C3 noob, all the Array and Save data in general still seems very complicated to do (for me), but your explanations made lots of sense to me because my brain can understand basic logic easily but nothing more advanced from my experience...

Both: local save or array seems to work as most of what I will do is tweak objects and their instances, MANY OF THEM.

Thanks to dop2000 help from my previous thread I already have a working Save As (naming file) and Load buttons that works great, to be honest I couldn't understand it completely with the JSON, AJAX and how to code it, so I copy past what dop2000 suggested to make it work, and it did!

I already excluded what shouldn't be saved, things like the UI for example.

Just like AllanR said, I will do many changes and tweaks to many instances that appears on the screen so I don't really need to save the UNDO / REDO for future sessions, so I either need the slots to be deleted when EXIT the software.

Also limit the UNDO so it will work on lower-end old machines will be a good advantage for the software and the users, I think 20 max UNDO will do the job, if not I can go for 10 max.

BTW - I'm not using Chrome to for C3, I'm using the Desktop build. my goal is to make it work for PC Windows / Mac / Linux hopefully it will be possible I have no idea...

Again, I have no clue how to even start code such thing technically, I wonder if it is very complex to achieve or around the same idea of the "Save As" system which without copy past I couldn't make it work to be honest because I don't understand all the JSON, AJAX, and all data related code in general it's still confusing to me.

Any help, guide, tutorial will be VERY helpful thank you so much everyone!

Hi All,

As I keep working on my software/application I was wondering if there is a way to make an UNDO and REDO?

For example:

When I deleted an instance, or change it's position, can I code that when I press 'CTRL+Z' it will undo the last action?

I'm not sure how to do that or if I'm on the right direction at all but I'm guessing that it could be done using the System save/load local action? based on a specific slot? ...it's just a rough guess I don't really know.

But hopefully it's not something that will clash with my current Save/Load system.

or maybe there is a different way to do it?

If it's too complicated to accomplish I'll probably skip that feature but I'm very curious if it's doable, and how exactly.

Thanks ahead!

That's very encouraging AllanR! I hope to understand C3 better, but for now I'm on the very basics it also may be my "brain" limit, when things get complex I'm lost... this is one of the reasons I really appreciate GROUPS and comments, it helps me a lot!

So, I'm thinking to make my software/tool to be MUCH MORE primitive than I originally wanted it to be.

It will be easier to solve issues for me, but I can already hear the users complain about some VERY BASIC tasks that I will probably get rid of...

I will probably keep asking how to do specific stuff, but if they're too complex for me to follow I prefer not copy/past but find an alternative solution if possible, if not... oh well, PRIMITIVE-MODE = ON! :D

Thank you AllanR for the detailed explanation, it is true that it's a great way learn at least for me.

I strongly believe that what I'm trying to do could be a simple task, but whenever I'm trying to look for that ACTION that could just allow me to make ALL the SELECTED OBJECTS to follow once I drag the 'Core_Selector' ...there is no such action to do that exactly, but only the Drag option or a more manually way that I couldn't make work using set position that will make the object to FOLLOW the core... and it failed because I couldn't do it right obviously.

So, I tried to do that without the 'DRAG n DROP' using set position but once again, I get to the point where I can't find the right ACTION to follow using the mouse movement, What I mean is when I tested it with something like:

When holding the 'RIGHT' arrow key (while SELECTED OBJECTS = TRUE) - Set the position to SELF.X + 5 pixels works SMOOTH! for Right, Left, Up, Down and rotate... but it wasn't possible to just make these rules work when I want it to follow the mouse position (I tried the mouse cursor x and y as well).

So it worked also manually (without drag n drop behavior), a bit different but did the job... that what makes me believe that there is a way to do it in a clean way.

I understand what you explained that it is impossible! but the more I play with it the more I believe there must be a simple way to code it, something that I can actually understand.

I'll probably have to copy/past your original code for this as it just works, but I can't say that it bothers me that it's not possible for me to accomplish even manually with a more simplistic way.

Programming is not for everyone, even that my brain is VERY logical, I actually drew the logic of how it should work and it looked SOOO simple on the paper... but once I got to C3 I'm missing the actions that I really want to do probably because I'm not in the C3-Think-Mode or something like that, I'm not THAAAT smart after all hehe.

Anyway, Thanks for the kind help I truly appreciated it Allan! :)

Sorry about that, I just upload to whatever google suggested me, I didn't see the option to attach via the forums when replying, I've updated the link above to another free file host.

If still not working please try this link:

https://gofile.io/?c=2ZgNlB

Thanks again AllanR you're awesome, I truly appreciate your kind help!

After reading your explanations, I tried to follow your instructions and what I showed on the last screenshot was just where I started to try recreate your code and stopped this is why it's not complete and obviously doesn't work.

So, I got rid of the SetColor on start of event and set it via the Family like your suggested.

Now when I start the application and create a ROCK (or more) they are all RED (default color, I can always change it later).

Here is what I got so far after cleaning, but how do I proceed from here to make the CTRL+CLICK to select instance or more? where I got confused was the other set variable / values or something like that.

I believe I have a looong way before I get to the actual POP-UP menu to control the selected instances but it worth it, I'm learning a lot this way! :)

You can add NoSave behavior to things you don't want to save.

Thank you so much! :)

I have another question somehow related to the original issue.

So far when the mouse cursor is OVER any of the instances, I made it where I press a key it will affect the top layer instance, for example:

If the mouse cursor is over one of the Rock instances and I Press the "DEL" key it will delete it,

If I press X it will rotate it, and so on... as long as the cursor is OVER that top-layer instance.

So far so good, BUT!

Since I have so many hotkeys, I want to make another way more User-Friendly using a graphic-GUI Menu Pop-UP with all the options as buttons. (I'm not asking about how to make the UI Menu)

How do I solve this?

Let's say I put the mouse cursor on one of the instances, and RIGHT-CLICK will bring the POP-UP MENU with all the buttons, once I'll move the mouse cursor to that menu to push a button, C3 won't know which instance to affect because my code is related on the mouse-cursor OVER the top-layer instance.

I'm a bit confused, because I probably need to code it in a different way but, I don't want to cancel the current cursor-mouse OVER instance, I want to ADD the POP-UP MENU as extra option.

Can anyone please help me out here? (scratching my head)

I already see how complicated it may become... File examples are more than welcome as I can explore and learn from it!

Thanks ahead guys for all the help! :)