To get the modifier that dwaroval adventurers start off with to move as they migrate/shift around their capital i edited the following files:
in the 01_scripted_effects_for_on_actions.txt file (in the scripted_effects folder)
right above the commented line that start with #Krakazol i put the following:

if = {
limit = {
FROM = {
OR = {
has_province_modifier = The_Company_of_Duran_Blueshield
has_province_modifier = Blackbeard_Cartel
has_province_modifier = Mithril_Arm_Cartel
has_province_modifier = Company_of_the_Grudgebearers
has_province_modifier = The_Forgemaster_Union
has_province_modifier = The_Ruby_Company
has_province_modifier = The_Flip_Of_A_Coin
has_province_modifier = The_Beckoning_Dark
has_province_modifier = Second_Asra_Expedition
}
}
}
if = {
limit = {
FROM = { has_province_modifier = The_Company_of_Duran_Blueshield }
}
FROM = {
remove_province_modifier = The_Company_of_Duran_Blueshield
}
ROOT = {
add_permanent_province_modifier = {
name = The_Company_of_Duran_Blueshield
duration = -1
}
}
}
if = {
limit = {
FROM = { has_province_modifier = Blackbeard_Cartel }
}
FROM = {
remove_province_modifier = Blackbeard_Cartel
}
ROOT = {
add_permanent_province_modifier = {
name = Blackbeard_Cartel
duration = -1
}
}
}
if = {
limit = {
FROM = { has_province_modifier = Mithril_Arm_Cartel }
}
FROM = {
remove_province_modifier = Mithril_Arm_Cartel
}
ROOT = {
add_permanent_province_modifier = {
name = Mithril_Arm_Cartel
duration = -1
}
}
}
if = {
limit = {
FROM = { has_province_modifier = Company_of_the_Grudgebearers }
}
FROM = {
remove_province_modifier = Company_of_the_Grudgebearers
}
ROOT = {
add_permanent_province_modifier = {
name = Company_of_the_Grudgebearers
duration = -1
}
}
}
if = {
limit = {
FROM = { has_province_modifier = The_Forgemaster_Union }
}
FROM = {
remove_province_modifier = The_Forgemaster_Union
}
ROOT = {
add_permanent_province_modifier = {
name = The_Forgemaster_Union
duration = -1
}
}
}
if = {
limit = {
FROM = { has_province_modifier = The_Ruby_Company }
}
FROM = {
remove_province_modifier = The_Ruby_Company
}
ROOT = {
add_permanent_province_modifier = {
name = The_Ruby_Company
duration = -1
}
}
}
if = {
limit = {
FROM = { has_province_modifier = The_Flip_Of_A_Coin }
}
FROM = {
remove_province_modifier = The_Flip_Of_A_Coin
}
ROOT = {
add_permanent_province_modifier = {
name = The_Flip_Of_A_Coin
duration = -1
}
}
}
if = {
limit = {
FROM = { has_province_modifier = The_Beckoning_Dark }
}
FROM = {
remove_province_modifier = The_Beckoning_Dark
}
ROOT = {
add_permanent_province_modifier = {
name = The_Beckoning_Dark
duration = -1
}
}
}
if = {
limit = {
FROM = { has_province_modifier = Second_Asra_Expedition }
}
FROM = {
remove_province_modifier = Second_Asra_Expedition
}
ROOT = {
add_permanent_province_modifier = {
name = Second_Asra_Expedition
duration = -1
}
}
}
}