Improve the use of the explorer adding tooltips for navigation and inputs

[DiegoMellisG]

1. If i want search with multiple Object ID, there is no guide to the user that indicate how to separate the IDs. With a tooltip you can indicate what separators can be used. In this case is pressing ',' or Space bar.
2. If i want navigate the object list, there is no suggestion to the users that indicate that they can use the left and right arrow keys.

[dirodriguezm]

I think that we could create some kind of manual instead of adding tooltips for every feature. If you think about it, when you open powerpoint or photoshop, you don't have tooltips explaining every single feature. Instead you learn it through a manual or tutorial.