Hi Alexander,
Yes. This property was included in later versions of v.4.1. Sorry for not mentioning this before. You can try our latest Release Candidate of v.4.2 (v.4.2.0.27) which you can download from the following link:
http://www.syncfusion.com/Downloads/latestversion.aspx
Note: A new key is needed for unlocking this version. Please contact sales (sales@syncfusion.com) if you have not received a key.
Thanks for choosing Syncfusion products.
Thanks,
Mano