Hi, @Dani Solano ,
With your description, I would like to know more detailed requirements from you for your task. Please let us know your thoughts about the following questions.
- What do you mean about "Ishare"? Is it a custom web part, a page or even a list?
- You mentioned "have a title with the symbol to hide or show more details when the user clicks on it", where do you want to show the tile with the symbol? And where does the details information come from, from documents in a library? Are you planning to do this in a document library?
- For the part "the user clicks the + icon he will see the definition, something similar to the treelist or hierarchy list", what would be the contents of the "definition"? In the treelist, what would you like to display?
If possible, please share us with a rough diagram for demonstration. You can paint on a screenshot with detailed requirements.
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