以前也问过,就是想知道怎么能看到界面右下角的灰色箭头,后来我又根据大家说得试了试,还是不行。现在还是调不出右下角的灰色小箭头,看了自带的说明文件它把这个叫control bar 功能是这样说的: For MASTERDRIVES MotionControl and VectorControl devices with integrated tool interface, the control bar is displayed in a different format and can be expanded to make a drive control panel for operating the drive. 我的版本是5.4,调试对象为6se70.请教各位神仙帮忙看看,怎么能有那个灰色的箭头?为了调试方便。