Someone else having Formula problems?
I fixed the problem by adding few more overload functions. But there is something interesting here. chiper is trying to append one string to another and the expected result is a longer string. What happens if we have a numeric value on one of both sides? I decided to turn the string side into a numeric value and then do the selected mathematical operation.
@azazelio I don't understand what is the problem here. I tried "For each Trade" and it works as expected for me. Which block doesn't work as expected for you?
@drewinbrissie I don't get any compile errors 
@mohammad2232 I will take a look at this. I can recommend you to just add the indicator in "My Indicators" and use it like this.
Also, the way you are trying to use the "Param." is not right. The contents of this input field is supposed to contain MQL4 code (all parameters separated with comma), which will then go directly in the output file as is. But this field is not a string and it's not supposed to be input parameter for the EA.
I think I fixed the Formula problem
@chiper The "Formula" block works only with numeric values. In your Formula I see strings on the both sides. To be honest, I never expected such thing to work, even in the old way. Maybe it worked, I never tested it. I will take a look if it's somehow possible to make it work now... but I'm not 100% sure.
@EndyPhD I tried your latest project, the sassy one. It looks fine for me. Meanwhile I also updated the Chrome plugin. Maybe the plugin does something wrong?
@shafifie I know why this happens. I made a decision for the code in the "Indicator is visible" that obviously doesn't work sometimes. So I will need to find a better way to do this, but it will take some time. So what I can suggest now is to replace these blocks with "Condition" blocks. I can see you are trying to load some objects in these blocks, so it will probably be easier. If in "Condition" block any of the sides equals to EMPTY_VALUE, the block won't pass. And this is the value when the object was not found, so basically it doesn't matter what you have on the other side of the "Condition". But just in case you can do "> 0"
I'm starting uploading a new update of the EA generator, which I made in the last few months. This will change the structure of the output files - from functions to OOP (classes). As a result the output files will be smaller in size, especially for big projects. Also, in my tests the new structure sometimes provides faster backtests... at least most of the time.
But because I have made many many changes, I expect problems to appear. I of course did many tests by myself and for me everything works normal right now, but I know that every time I do some big update like this, some bugs appear out of nothing.
So I also want to apologize in advance for any problems that might happen. And I also want you to tell me here about any newly introduced problems 
I think these options are only in MetaTrader. The EA is just a set of trading rules, but I don't know any functions that can change the behavior of MetaTrader when it works in that Optimization mode.
Indicators normally have output buffers and they put their values there, so that the EA can grab them from there. Some indicators may not use those output buffers, they can only print objects on the chart. In this case you can only work with the objects - https://fxdreema.com/examples#Chart-Objects
To test the output buffers of an indicator, I recommend to use the Trace block - https://fxdreema.com/demo/mt4-trace-multiple
I think the example will work. Yes, the value is like 0.02, but on the right side the value of 40 will be converted to something like 0.0040, which I call "price fraction".
But to be sure, you can always use the "Comment" block to display any value on the chart.
30 degree rise is false idea I think. What means 30 degree, when you can just use the mouse to make some zoom-in and zoom-out and change the degrees completely. I mean, these degrees depend on how the chart is set up. On the horizontal axis we have Time and on the vertical axis we have Price - those are different kind of values and 1 second of Time is not comparable with 1 tick of the Price for example.
ZigZag exists as an example indicator in MetaTrader, but I used it and I added it as a built-in indicator in the Condition block. Plus, I changed it a little but, so you can get different kind of values from it. You can try it. Me, honestly, I hate this indicator with passion and I don't know how it should be used
Oh... this is hard to explain. But I always recommend to use Constants instead of these checkboxes. The timeframe is a little bit tricky by the way, even I don't always know what is the best way to deal with it.
I guess something is wrong, but this Shoutbox is a plugin for the forum and to be honest I'm a little bit scared to touch those things in this forum. I was having hard time to configure all the relative links properly in the beginning
You can always define some Constant and use it in Adjust filed with its name. Otherwise you will never see this checkbox for optimization after Adjust, because this field is a little more complex than the other input fields. And to be honest, once I tried to remove all checkboxes, but someone wanted them back. If it depends on me, I would remove them all, because I think that people are using them too much, which is not a good practice.
I have no idea, I can't find anything about "twitter" in the MQL documantation. I guess it can be done with the help of some other tool which accepts a signal in some form and connects with Twitter. An EA can send notification to a phone or it can send HTTP request to particular web address, but I don't know the rules of Twitter.
I think you can better try this: http://prntscr.com/g78bpb - at any time (after 02:00) you can get this value.
It is tricky and charts are accessed by some relative number, such as 0, 1, 2 and so on. So I guess it is important to have charts opened in particular order. But why do you need that, isn't it better to really work with 1 chart?