Hello, i been working on bug 33773 for a few days already, and i got to the point where i can display and manipulate X Error bars, but theres a few issues i dont know how to proceed. 1.- How i should handle export/import??? It seems ODF 1.2 and below, only support working with Y error bars, XLS import/export code, already supports having both bars. Tested it by exporting to xls and then importing it. Is there any way we can add features not implemented in the ODF spec??? 2.- What is the code inside chart2/source/controller/charapiwrapper for??? Backward compability with chart API??? 3.- Should i push my code to a feature branch??? So other people can review my work?? Any suggestion or code pointers is also welcome! Thanks all