Thanks for writing.
1. Here's more information on Grid customizations: http://docs.telerik.com/devtools/ios/chart/grid-customization. If you think there is a problem with the way the Grid works, please provide a detailed description of how the problem could be reproduced or directly send us a project which we can use to reproduce it by opening a new support ticket. Thanks for your understanding.
2. We will need a project to reproduce this issue to be able to help.
Telerik by Progress
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Telerik Feedback Portal
and vote to affect the priority of the items