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In general the answer would be: no, not without you writing an RViz plugin for your custom message.

For example, I have the temperature data regarding the position data [..]

In this example though: sensor_msgs/Temperature includes a header field, which includes a frame_id field. If you set that to the name of a TF frame and the TF frame origin (ie: its current position) corresponds to the 'position data' that you mention, then I believe the Temperature display should be able to visualise it 'in place'.