diff --git a/bootstrap.py b/bootstrap.py
index 689814d..4eb9937 100755
--- a/bootstrap.py
+++ b/bootstrap.py
@@ -37,6 +37,70 @@ with open('servers.json', 'r') as server_fh:
     MODULES = jsonfile['modules']
 
 
+async def set_linked_multi_variables(linked_server: str,
+                                     **kwargs: dict,
+                                     ) -> None:
+
+    if linked_server is None:
+        return
+    if linked_server not in CONFIGS:
+        warn_explicit(ValueWarning(f'cannot find linked server "{linked_server}"'),
+                      ValueWarning,
+                      __file__,
+                      0,
+                      )
+        return
+    config = CONFIGS[linked_server][0]
+    dico = {}
+    variables = {}
+    for key, value in kwargs.items():
+        if value is None:
+            return
+        if key.startswith('linked_provider_'):
+            index = int(key[16])
+            path = await config.information.get('provider:' + value, None)
+            if not path:
+                return
+            if index not in variables:
+                variables[index] = {'path': None, 'value': None}
+            variables[index]['path'] = path
+        elif key.startswith('linked_value_'):
+            index = int(key[13])
+            if index not in variables:
+                variables[index] = {'path': None, 'value': None}
+            variables[index]['value'] = value
+        else:
+            raise AttributeError(f'unknown parameter {key}')
+    dynamic = None
+    slave_idx = None
+    await config.property.read_write()
+    try:
+        for index in sorted(list(variables)):
+            path = variables[index]['path']
+            value = variables[index]['value']
+            if dynamic:
+                path = path.replace('{suffix}', dynamic)
+            else:
+                dynamic = normalize_family(value)
+            option = config.forcepermissive.option(path, slave_idx)
+            multi = await option.option.ismulti()
+            if multi and await option.option.isfollower():
+                multi = await option.option.issubmulti()
+            if multi:
+                values = await option.value.get()
+                if value not in values:
+                    values.append(value)
+                    await option.value.set(values)
+                if await option.option.isleader():
+                    slave_idx = values.index(value)
+            else:
+                await option.value.set(value)
+    except Exception as err:
+        await config.property.read_only()
+        raise err from err
+    await config.property.read_only()
+
+
 async def set_linked(linked_server: str,
                      linked_provider: str,
                      linked_value: str,
@@ -335,6 +399,7 @@ async def build(server_name, datas, module_infos):
     cfg['extra_dictionaries'] = module_info.extra_dictionaries
     cfg['extra_annotators'].append('risotto.rougail')
     optiondescription = {'set_linked': set_linked,
+                         'set_linked_multi_variables': set_linked_multi_variables,
                          'get_linked_configuration': get_linked_configuration,
                          'set_linked_configuration': set_linked_configuration,
                          }