index.php?ext=sysmanager&controller=extensions importExtension multipart/form-data

Left form column

main sysmanager.extension.upload.selectfile sysmanager.extension.upload.archivehint sysmanager.extension.upload.override

Actions

buttons submit sysmanager.extension.upload.button uploadExtension Todoyu.Ext.sysmanager.Extensions.Import.startUpload()