To show full article instead of excerpts on home page:
Go to content.php line 52 (line 50 in latest version)
<?php if ( is_home() || is_search() || is_category() || is_tag() || is_author() ) : // Display Excerpts for Search, home, category and tag pages ?>
Replace that line with
<?php if ( is_search() || is_category() || is_tag() || is_author() ) : // Display Excerpts for Search, category and tag pages ?>
After doing this you will have to manually use the more tag to break posts for home page.
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Iconic One Pro uses excerpts by default for a uniform layout display and to save the trouble of using more tag manually each time. By using the code given above you can have the manual control you want.