RCLOUD app should allow uset to rename a file

RCLOUD is great for saving and retrieving files from devices. However it lack the ability to rename files. 

Often I find this most lacking when I save a file I have received through e-mail and I am no satisfied with the current name e.g invoicennnnnn.pdf. Though I may perfectly from my device may save this to my readynas Through Rcloud I cannot rename the file immediately after.

please introduce a rename file feature in rcloud for devices such a iPhone an android