How to have tool tip on icons and buttons
Hi Apurva,
This is currently not possible on the button/icon components itself. If this is something you are interested in, you can create a feature suggestion.
You could work around this by creating a grid component with 1 item and modifying the template with some custom HTML. This is done by creating a query that returns exactly 1 row (using the TOP X operator) and adding that to a grid. Then you can add custom HTML in a text shape of the template to fit your needs. This template can also have a shape to execute actions, making it act as a button and a shape to show an icon. Note that this means that the component has to execute a query to get a result that isn't actually used. Which is not recommended from a performance aspect.
Note: To avoid fetching a single row via GQI, you can use a table variable that has just one row. This achieves the same effect as what Wout mentioned, without needing to go through GQI.