diff --git a/DG_Approximation.py b/DG_Approximation.py
index 10fdf13c604e2d1306470fbac11af31601b21285..48ea3e508b4f40b07094179339da7d3002100f04 100644
--- a/DG_Approximation.py
+++ b/DG_Approximation.py
@@ -16,19 +16,28 @@ TODO: Contemplate saving training data for each IC separately
 TODO: Contemplate removing TrainingDataGenerator class
 TODO: Ask why no fine mesh is used for calculate_coarse_projection()
 TODO: Contemplate keeping Theoretical threshold over all degrees (only p)
-TODO: Contemplate reasoning behind Adjusted-Outer-Fence method
+    -> Done (same options as Boxplot)
+TODO: Discuss whether Threshold detector is needed
+TODO: Contemplate reasoning behind Adjusted-Outer-Fence method -> Done
 TODO: Discuss why indexed_coeffs are largest absolute value instead of
-    mean for Boxplot TC
+    mean for Boxplot TC -> Done (give option)
 TODO: Discuss why overlapping cells are only introduced for one adjacent
-    fold (right neighbour, except for last fold)
+    fold (right neighbour, except for last fold) -> Done
 TODO: Discuss whether quartiles do correspond to Thea's calculation
+    -> Done (do not, change)
 TODO: Discuss that quartiles do not take overlapping cells into account
+    -> Done (change)
+TODO: Contemplate using pre-implemented quartile functions -> Done (do)
 TODO: Contemplate restricting number of overlapping cells to half of fold
-    length
+    length -> Done (Restrict to 1 for now)
+TODO: Contemplate whether overlapping cells should be evaluated in
+    neighboring folds -> Done (no)
 TODO: Discuss if folds are valid for all possible num_grid_cells/fold_len
-TODO: Contemplate combining get_cells() and _get_cells()
+    -> Done (enforce)
+TODO: Contemplate combining get_cells() and _get_cells() -> Done (do)
 
 Urgent:
+TODO: Enforce mesh with 2^n cells
 TODO: Change heaviside random to uniform(-100, 100)
 TODO: Adjust Heaviside to have non-symmetric values (left- and right_value)
 TODO: Rename 'adjustment' to 'shift'
@@ -76,6 +85,7 @@ Not feasible yet or doc-related:
 TODO: Use cfl_number for updating, not just time (equation-related?)
 TODO: Adjust code to allow classes for all equations
     (Burger, linear advection, 1D Euler)
+TODO: Add ThresholdDetector
 TODO: Double-check everything! (also with pylint, pytype, pydoc,
     pycodestyle, pydocstyle)
 TODO: Check whether documentation style is correct
diff --git a/Troubled_Cell_Detector.py b/Troubled_Cell_Detector.py
index ce4cecfde141ced7ef274284d05b66abca9c291c..08df2524312cf61132af7d76d280f0517ccc7e96 100644
--- a/Troubled_Cell_Detector.py
+++ b/Troubled_Cell_Detector.py
@@ -6,9 +6,13 @@ TODO: Vectorize _get_cells() in Boxplot method -> Done
 TODO: Restructure Boxplot method -> Done
 TODO: Introduce lower/upper extreme outliers in Boxplot
     (each cell is also checked for neighboring domains if existing) -> Done
+TODO: Give option to choose from multiwavelet degrees (first, last or
+    highest magnitude)
+TODO: Change method of calculating quartiles
+TODO: Include overlapping cells in quartile calculation (if needed)
 TODO: Determine max_value for Theoretical only over highest degree
 TODO: Check if indexing in wavelets is correct
-TODO: Add ThresholdDetector
+TODO: Combine get_cells() and _get_cells()
 TODO: Add TC condition to only flag cell if left-adjacent one is flagged as
     well (remove this condition)
 TODO: Check coarse_projection calculation for indexing errors