----------------------------------------------------------Please Consider on My BID---------------------------------------------------Sir, I Have read your project description. i have 8 year exp. in opencart. I have excellent exp. In opencart customization, upgradtion, theme update, module creataion. I will help u to update the setting, attributes, calendar plugin. I can do update perfectly. I have done it 100+ opencart website, I am confident to handle your projects .i m the top of listing on opencart developer. I have 5.0 star with high repeated rate in the top opencart skill. Please send me message on chat for more about discuss on project, thanks