It is quite a learning curve to use FST, it takes a lot of experience and also a through knowledge of the program and its options.

There is a thread especially to request modifications to the program and the developer is generally quite accommodating for requests. Please add to the thread a complete description of the modifications you require, one per post, so that the request may be dealt with as appropriate.

Data can be in whatever folder you want it to be in and you can select what goes into each data folder, I have several data folders for different purposes.

Regarding scanning. you will have to post a screen shot and perhaps your data for someone to analyze that situation.

Keep screenshots of the optimizer results.

Use Strategy Properties to set your stop loss and take profit.

As you can see, your lack of familiarity with the features of the software is causing you some problems, please take time to study each area of this site and all of the documentation and that will resolve most of the difficulties you are having.

Anything that you feel to be an error. please write a complete description and enclose screenshots instead of saying something is an error....

You will find that with more knowledge of the software that most of your difficulties will disappear. There are thousands of users..., some of them are quite advanced in system development.... and they are having  great success with this software.

Well, by your questions you have revealed that you are unfamiliar with the software, it is up to you to spend the required time to learn.

Trading is a very rewarding business, however, a trader has to put in the learning time. and if he wants to skip that part..... he will not see success long term.

I have answered your questions and explained how to submit requests for changes. the rest you will have to do for yourself.

Optimizer remembers +- step you use last. It doesn't remember individual values because it will be wrong if you change the strategy or some of its parameters. Or optimizer has to remember all strategies and its settings?

Lets first fix this. How FSB crashes, what is the crash message, what is the strategy, data and settings. How to reproduce the crash?

Find FSB in GitHub, Clone it, disable loading of unwanted time frames, and build the project. If you want make options boxes for this feature. If it works properly, you can request it to be included in the official distribution.

If you want, you can ask or hire someone to make this for you.

No doubt, optimizer must remember the values set by user (for min/max/step).
The same principle works in MetaTrader and it is great that MT does not touch these values!
(even when user close and reopen MT the tool keeps all the values defined by user)
If somebody wants to let FSB to change them he could press the button.
But by default optimizer should always remember and use what user wants.

9. I tried to add Moving Averages - same limit of max value = 200.
If user need to "simulate" H1 on M5 timeframe he will need to have upper limit of 1000-3000.
Like I asked - please, remove all the limits.
Users must know what they are going to do and the tool should not limit them.

If you want a MA with period of 3000, you'll need 3001 bars in order to receive the first MA value.
FSB will need to limit minimum number of bars to 3002 to ensure that the indicator will be calculated properly at least two times and to can calculate the logic.

If you want to remove the limits, make a custom MA. It will take you 1 minute if you are familiar with the process or 1 hour to learn how to do it.

What are you waiting for then?

No bug, it's intentional.

Clever? Do you want to start an argument? You said it now yourself - you have sufficient knowledge of coding, this makes you far more capable than most of the users here in this forum!

99% of Moving Averages using worldwide are with period of less than 200. If we make the period unlimited, we have to set such limits in the generator. If not, if you have 50 000 bars, Generator may choose MA with period of 49 998 and to leave 2 bars for backtesting .
If we set limit to 3000, only 1/10th of MAs will have period of less than 300. This will make it practically unusable.

FSB is intended to be easy for most of the users. Advanced users and coders knows how to adapt the software for his needs.

There are other softwares for preparing Ea's, some of them are 'Point & Click' for the logic and they create the code for you.

Perhaps you should invest in a software of this type and that would resolve all of your difficulties.

Every software available has its own persona, its own advantages and its own lacks, we have to learn to adjust to the software we are using, complaining is not productive.

We keep asking the developer to make modifications and he attempts to comply, there is soon going to be a revision which will add some great features for analysis... that is very important and useful to all.

Because this is an open source project, anyone can make modifications and adjust their copy of the software to their preference.... and if the modification will suit the community it will be added by the developer.

What more can we expect.?

Trading is a 'do it yourself' business and a 'learn it yourself' business. In this community are many people who have contributed some excellent ideas.

I am not too sure that there is another software that is accommodating as this...!!!