Not that I have any sepcific info on this, but this is an example I am working with.
(3 . "\\pxa4,ql;{\\LTREE PRESERVATION MEASURES PLAN
NOTES\\P\\pi-3,l3,t3;}1.\tGENERAL\\P\\pi-5,l6,t6;1.1.\tINTRODUCTION\\P\\pi-7,l9,
t9;1.1.A.\tGENERAL PLAN NOTES. \\P\\pi-9,l12,t12;1.1.A.a.\tPRE-CONSTRUCTION
STRESS REDUCTION \\P\\pi-5,l6,t6;1.2.\tDESCRIPTIONS OF THE WORK\\P")
(1 . "\\pi-7,l9,t9;1.2.A.\tPRE-CONSTRUCTION \\P\\pi-9,l12,t12;1.2.A.a.\tMULCH
RINGS. \\P\\pi-3,l3,t3;2.\tSEASONAL \\P\\pi-7,l9,t9;2.0.A.\tDESTRUCTIVE PEST
MANAGEMENT")