Behaviour of Forward & Backward history

1- My first suggestion is to have a way to clean the back and forward history.
When I'm following symbols on the code, sometimes it gets a bit messy and I would like to clean that history and start it over.

2- One of the main uses I give to the back-forward is to navigate through symbols(F2), just like I used to do with ctags/etags in other environments.
So I visit a symbol1, then from there I visit another symbol2, and then I go back and look for a new symbol3.
In those environments, symbol2 dissapears from the history, and that is the behaviour expected.

With QtCreator, it seems to me that it is not working that way, and symbol3
is inserted in the history, so it will have (moving forwards):

symbol1 -> symbol3 -> symbol2

For me it is an unexpected behaviour, so I suggest that "Go back" erases the previously "Forward" visited symbols.

3- Another point that confuses me, it is that the back-forward history sometimes keep some intermediate movements or something similar.
For example if I visit a function moving with the arrows and then another, the back-forward history keeps those places.
I suggest to keep in the history just visited symbols.