ipycytoscape, draw subgraph - jupyter

Question

I'm noob in ipycytoscape and Jupyter and seems need help. I'm trying to find a sutable way to show/draw subgraph after I click by node.
For example.
I have graph with node1---node2---node3 . I click by node1 and want to show
node1 --- node2.1 - node2.2 node2.3 --- node3.
Don't know how to make this. Tried to find in Google but coudn't find any suitable approach.
This is my simplest code for this. I no idea how to show and aftger hide (expand and collapse) subgraph. This code don't have this part.
I heard something about layouts but couldn't find sutable example for ipycytoscape.
Any ideas are welcome.
import ipycytoscape
import ipywidgets as widgets
import networkx as nx
counter = 0 # need to make new nodes with uniq id
data = {
'nodes': [
{ 'data': { 'id': 'desktop', 'name': 'Cytoscape', 'href': 'http://cytoscape.org' } },
{ 'data': { 'id': 'a', 'name': 'Grid', 'href': 'http://cytoscape.org', 'parent': 'Cola' } },
{ 'data': { 'id': 'c', 'name': 'Popper', 'href': 'http://cytoscape.org', 'parent': 'Cola' } },
{ 'data': { 'id': 'b', 'name': 'Cola', 'href': 'http://cytoscape.org' } },
{ 'data': { 'id': 'js', 'name': 'Cytoscape.js', 'href': 'http://js.cytoscape.org' } }
],
'edges': [
{'data': { 'source': 'desktop', 'target': 'js' }},
{'data': { 'source': 'a', 'target': 'b' }},
{'data': { 'source': 'a', 'target': 'c' }},
{'data': { 'source': 'b', 'target': 'c' }},
{'data': { 'source': 'js', 'target': 'b' }}
]
}
custom_inherited = ipycytoscape.CytoscapeWidget()
custom_inherited.graph.add_graph_from_json(data)
custom_inherited.set_style([{
'selector': 'node',
'css': {
'content': 'data(name)',
'text-valign': 'center',
'color': 'white',
'text-outline-width': 2,
'text-outline-color': 'green',
'background-color': 'green'
}
},
{
'selector': 'node[classes = "collapsed-childS"]',
'css': {
'background-color': 'red',
'line-color': 'blue',
'target-arrow-color': 'red',
'source-arrow-color': 'red',
'text-outline-color': 'red'
},
}
])
# When I click to node by mouse I add some nodes. I made this because don't know how to show and hide subgraph. The question in this place.
def paint_blue(event):
global counter
for node in cytoscapeobj.graph.nodes:
if node.data['id'] == event['data']['id']:
auxNode = node
auxNode.data['classes'] = "collapsed-childS"
station_NUR = ipycytoscape.Node()
station_NUR.data['id'] = "NUR" + str(counter)
station_NUR.data['name'] = station_NUR.data['id']
station_NUR.data['classes'] = "collapsed-childS"
station_FRA = ipycytoscape.Node()
station_FRA.data['id'] = "FRA" + str(counter)
station_FRA.data['name'] = station_FRA.data['id']
station_FRA.data['classes'] = "collapsed-childS"
new_edge1 = ipycytoscape.Edge()
new_edge1.data['id'] = "line6" + str(counter)
new_edge1.data['source'] = station_NUR.data['id']
new_edge1.data['target'] = station_FRA.data['id']
new_edge2 = ipycytoscape.Edge()
new_edge2.data['id'] = "line7" + str(counter)
new_edge2.data['source'] = station_NUR.data['id']
new_edge2.data['target'] = auxNode.data['id']
custom_inherited.graph.add_node(station_NUR)
custom_inherited.graph.add_node(station_FRA)
custom_inherited.graph.add_edges([new_edge1,new_edge2])
counter = counter + 1
custom_inherited.on('node', 'click', paint_blue)
custom_inherited