Hi kivi,
possible options:
1) add new data in front of older data - this way they new data will show up in the first row of the table...
2) there are property nodes to set the viewable elements of the table! Adjust the appropriate one to show the last element of the table...
3) limit the data shown to the user to some reasonable value as building big (arrays of) string(s) will take it's time and memory space...
Best regards,
GerdW

using LV2016/2019/2021 on Win10/11+cRIO, TestStand2016/2019