My understanding is the passageway is under joint responsibility between myself and my neighbour. The passageway is shown in blue on the Land Registry document.
The first text already shown to you is from the description section of the Land Register:
"a servitude right of passage at all times for pedestrian traffic only by way of the passageway or pend between ground and first floor level on that part of the said adjoining subjects shown tinted blue on the said Plan."
The second text is from the Burdens section:
"The feuars shall be responsible in all time coming for a one-half share cost of maintaining and repairing... (b) the passageway or pend between ground and first floor level on that part of the adjoining subjects **neighbour's address**, aforesaid tinted blue on the said Plan."
If I have a half-share responsibility for any maintenance work then presumably I have a share of ownership, thus a right to a say in what work is carried out in that area?