Ability to clean data already in data manager

Very important thing is to use data (especially tick level data) free of abnormal spikes and gaps that distorts any indicator and thus strategy. Even commonly used dukascopy data has these and for now data manager in SQX can spot these things but we cannot do anything about it here except exporting it, do some cleaning manually/use external scripts and import it again which is not optimal at all. Maybe we could have some simple tools already on data manager when we inspect quality of data? Simplest one would be to have ability to sort price lines by % change of previous line and by this sort all from biggest and then we could select with lines we want to delete. But I think there are more advanced users in data cleaning field from me and could suggest some good ways to handle this easy and effectively.

Two things to have in mind:
1. Besides of tools/ways we could have to clean data and sort/inspect price lines it is super important to remember there are also weekend gaps that are natural thing - this should have some marks its weekend gap or other kind of protection from messing with this kind.
2. If we modify/clean data from for example dukascopy downloaded by build in data manager downloader, updating that data should NOT overwrite our old cleaned parts with downloaded ones. Or at least it should ask about it.