Trados Live Terminology entry ID

Is it possible to change entry IDs in Trados Live Terminology?

Our TB was created from the exportation of a TB created in MultiTerm a few years ago. Then, because I had a lot of entries to add, I created an Excel file to import several terms at once. Because I did not want to overwrite existing entry IDs, I labeled the new ones

_1

_2

_3

and so forth.

Now, I have the old terms that seem to have an ID automatically generated by Live Terminology + the ones I created myself. Is there a way to change entry IDs? 

If I import a list of terms in Excel and don't give them an entry ID, will Live Terminology generate one automatically?