How to make Tiva ware default include directory in IAR embedded workbench?

Radoslav Marinov said:

in case I want to create my own project

Those (quoted) words - all too often - prove the "last" of creation-obsessed posters...

Silent always - what is the appeal of, "own creation?"  The code examples are conceived & implemented by persons w/experience, skill, and care - "own creations" are unlikely to anticipate & implement all that is required.   (this is not a "knock" upon you - the task is non-trivial - and is unlikely to justify your time/effort...)  Note - that if you're really "up" for the time/effort/detail investment - IAR has rich technical documents - prepare for a long & intense read...

Along with the (always) silence in justifying the "why" of own-creation - may we highlight your need to (likely) choose between becoming an "IDE maven" or more likely - your "continued growth in understanding & mastery" of this class MCU.  (it's not easy to achieve both - doing too much is a violation of KISS...)

Far more successful alternative is to employ the "closest" factory-supplied project - again one that's been implemented by experts.  You then may carefully & methodically add your own code blocks - and carefully delete (small sections, methodically) of the original code.   This method works as all of the many, special IDE hooks & paths have been (properly) made for you.

Any "negative feedback" which results from the non, "own-project name" may be overcome by a (careful) project "rename." 

Long live the desire for, "create my own" - not so much the improper, ill-considered, methods of achievement...

As far as I understood you are telling me to employ one of the existing projects and to modify it? When I Add existing project from the Tiva Ware examples, I don't make a copy of the project into my own directory, instead I modify the original example which is undesirable.

There's a simple means - for both you/I - to achieve our goals.  Cannot you (first) simply copy - then save your chosen, existing project - in a "safe" (and known) location?  (surely you can - and this keeps your original, factory project "intact" - while freeing you from the necessity to become IDE maven.)  You're then free to modify away (controllably - as past suggested) as you have the original project safely stored, elsewhere...

And you are welcome...

Thanks a lot cb1 for helping me to find a solution to my issue. So I made a copy of one of the example projects in Tiva Ware. Then I located it into prepared directory. Then I added it into IAR as an existing project. Again when I compile it, an error appears: the compiler can not find the include file. How to make the IAR to search include files (by default) in Tiva ware directory as it searches into the project directory? I made a video to show what exactly what I am doing: https://www.youtube.com/watch?v=SHbsJYo277Y

Thanks again cb1. I appreciate your time.

As past stated, IAR provides extensive documentation with their large, long established, pro IDE.

Your read/review of IAR docs is preferable to my view of your (unique) video. Your answers are there - but do require some "digging/head-banging" upon your part... (same holds true for each/every IDE...)