To do so, select in the Treeview under "Surgeries" the entry "Ant./Post. Transposition" or in the main menu the entry "Surgeries->Ant./Post. Transposition". Afterwards, move the curser directly over the insertion point that you want to transpose so that the cursor changes its shape into a scalpel. Now push the left mouse button and pull the insertion point to the desired position, while still pressing the left mouse button. Thereby, the transposition is restricted to the muscle action circle. Therefore, in this surgery technique you cannot move the insertion point upwards or downwards.

In this example the lateral rectus muscle of the right eye is transposed on its drawn in muscle action circle (in primary position). The gray point marks the location of the insertion before the transposition. The handling is the same as in the "normal" surgery technique transposition.