I'm familiar with vertical blocks, and I often ctrl+v down down down shift+I foobar esc to write foobar in various locations at once. This is useful if I want to replace <td> to <th> in a chain, for instance.
Since not all the text blocks are of equal size, I don't know how to do the same for </td> to </th>. I can think of selecting multiple lines as I did earlier, move to the end of the line with shift+a, maybe, move one to the left, delete a character with x, and type my h, but I don't know how to move my position(s) when I am in visual block mode.
Is there a way to select a position as active, and move as I usually would with my marker, choosing where to write?
In SublimeText3 I would do something like ctrl+d to select the cases I'm looking for (skipping with ctrl+k+d if necessary), moving to the end-of-line with end (home for the beginning of the line), and then moving with the arrow keys (alternatively with ctrl+arrow keys).
An example scenario:
<tr> <th>Language</th> <th>Oral</th> <th>Written</th> <th>Diplomas</th> <th>Notes</th> </tr> which I want to be
<tr> <td>Language</td> <td>Oral</td> <td>Written</td> <td>Diplomas</td> <td>Notes</td> </tr>