diff --git a/notebooks/2015-11-30-api-functionality.ipynb b/notebooks/2015-11-30-api-functionality.ipynb
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+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stderr",
+     "output_type": "stream",
+     "text": [
+      "WARNING: module JuliaFEM should explicitly import setindex! from Base\n"
+     ]
+    }
+   ],
+   "source": [
+    "using JuliaFEM: Material, set_material!, get_element_set, ElasticityProblem,\n",
+    "DirichletProblem, LoadCase, DisplacementBC, ForceBC, DirichletProblem,\n",
+    "add_boundary_condition!, add_loadcase!"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stderr",
+     "output_type": "stream",
+     "text": [
+      "INFO: Parsing nodes\n",
+      "INFO: Parsing elements. Type: JuliaFEM.Tet4\n",
+      "INFO: Parsing elements. Type: JuliaFEM.Seg3\n",
+      "INFO: Creating elset BC1\n",
+      "INFO: Creating elset BC2\n"
+     ]
+    },
+    {
+     "data": {
+      "text/plain": [
+       "JuliaFEM.Material{ASCIIString,Float64}(\"steel\",Dict(\"poissons ratio\"=>0.3,\"youngs modulus\"=>210000.0,\"other values\"=>100000.0))"
+      ]
+     },
+     "execution_count": 2,
+     "metadata": {},
+     "output_type": "execute_result"
+    },
+    {
+     "name": "stderr",
+     "output_type": "stream",
+     "text": [
+      "INFO: Creating elset BC3\n"
+     ]
+    }
+   ],
+   "source": [
+    "\n",
+    "# Reading nodes, elements and sets from input file\n",
+    "model = open(JuliaFEM.parse_abaqus, \"/home/olli/.julia/v0.4/JuliaFEM/geometry/piston/piston_8789_P1.inp\")\n",
+    "\n",
+    "# Creating material\n",
+    "# It is possible to create material data with one function\n",
+    "steel = Material(\"steel\",\n",
+    "    (\"youngs modulus\" => 210.0e3,\n",
+    "     \"poissons ratio\" => 0.3,\n",
+    "     \"other values\" => 100e3),\n",
+    ")\n",
+    "\n",
+    "# Or by adding row by row\n",
+    "steel2 = Material(\"Steel2\")\n",
+    "steel2[\"youngs modulus\"] = 210.0e3\n",
+    "steel2[\"poissons ratio\"] = 10.0\n",
+    "\n",
+    "# Setting material to element set\n",
+    "set_material!(model, steel, \"PISTON\")\n",
+    "\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "JuliaFEM.NeumannBC{ASCIIString}(\"displacement traction force\",1000,\"BC1\")"
+      ]
+     },
+     "execution_count": 3,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "# Fetchig set from model\n",
+    "piston = get_element_set(model, \"PISTON\")\n",
+    "\n",
+    "# Creating problems:\n",
+    "# Elasticity \n",
+    "elasticity_problem = ElasticityProblem()\n",
+    "\n",
+    "# Boundary conditions\n",
+    "BC1 = DisplacementBC(\"displacement u1\", 0.0, \"BC2\")\n",
+    "F1 = ForceBC(\"displacement traction force\", 1000, \"BC1\")\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "2-element Array{Array{Union{JuliaFEM.DirichletBC{S<:AbstractString},JuliaFEM.NeumannBC{S<:AbstractString}},1},1}:\n",
+       " Union{JuliaFEM.DirichletBC{S<:AbstractString},JuliaFEM.NeumannBC{S<:AbstractString}}[JuliaFEM.NeumannBC{ASCIIString}(\"displacement traction force\",1000,\"BC1\"),JuliaFEM.DirichletBC{ASCIIString}(\"displacement u1\",0.0,\"BC2\"),JuliaFEM.NeumannBC{ASCIIString}(\"displacement traction force\",1000,\"BC1\"),JuliaFEM.DirichletBC{ASCIIString}(\"displacement u1\",0.0,\"BC2\")]\n",
+       " Union{JuliaFEM.DirichletBC{S<:AbstractString},JuliaFEM.NeumannBC{S<:AbstractString}}[JuliaFEM.NeumannBC{ASCIIString}(\"displacement traction force\",1000,\"BC1\"),JuliaFEM.DirichletBC{ASCIIString}(\"displacement u1\",0.0,\"BC2\"),JuliaFEM.NeumannBC{ASCIIString}(\"displacement traction force\",1000,\"BC1\"),JuliaFEM.DirichletBC{ASCIIString}(\"displacement u1\",0.0,\"BC2\")]"
+      ]
+     },
+     "execution_count": 4,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "\n",
+    "# Possible ways to create a loadcase, whihc holds all data for calculation\n",
+    "load4 = LoadCase(elasticity_problem)\n",
+    "load = LoadCase(elasticity_problem, [BC1])\n",
+    "load2 = LoadCase(elasticity_problem, [BC1, F1])\n",
+    "load3 = LoadCase(elasticity_problem, BC1)\n",
+    "\n",
+    "# Couple of ways to add boundary conditions to loadcase\n",
+    "add_boundary_condition!(load, BC1)\n",
+    "add_boundary_condition!(load2, F1)\n",
+    "add_boundary_condition!(load3, BC1)\n",
+    "add_boundary_condition!(load4, [F1, BC1])\n",
+    "add_boundary_condition!(load, [F1, BC1])\n",
+    "add_boundary_condition!(load4, [F1, BC1])\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 6,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "0"
+      ]
+     },
+     "execution_count": 6,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "\n",
+    "# Adding load case to model, various ways...\n",
+    "add_loadcase!(model, load)\n",
+    "add_loadcase!(model, [load, load2, load3])\n",
+    "0"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "collapsed": true
+   },
+   "outputs": [],
+   "source": [
+    "# Select solver\n",
+    "solver = DirectSolver()\n",
+    "\n",
+    "solve!(model, solver)"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Julia 0.4.1-pre",
+   "language": "julia",
+   "name": "julia-0.4"
+  },
+  "language_info": {
+   "file_extension": ".jl",
+   "mimetype": "application/julia",
+   "name": "julia",
+   "version": "0.4.1"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 0
+}