diff --git a/config/locales/js-en.yml b/config/locales/js-en.yml
index 8fe7fa7a965..32e811af821 100644
--- a/config/locales/js-en.yml
+++ b/config/locales/js-en.yml
@@ -446,6 +446,7 @@ en:
label_quote_comment: "Quote this comment"
label_recent: "Recent"
label_reset: "Reset"
+ label_remove: "Remove"
label_remove_column: "Remove column"
label_remove_columns: "Remove selected columns"
label_remove_row: "Remove row"
diff --git a/frontend/doc/TESTING.md b/frontend/doc/TESTING.md
index de01f2b3777..932c4458d63 100644
--- a/frontend/doc/TESTING.md
+++ b/frontend/doc/TESTING.md
@@ -11,8 +11,7 @@ OpenProject is a hybrid application with most parts being Rails, along with some
-The Angular frontend services and components can be tested with frontend specs. A good isolated example on how to set up an Angular TestBed to test components is `frontend/src/app/modules/a11y/accessible-by-keyboard.component.spec.ts`
-
+The Angular frontend services and components can be tested with frontend specs.
If you want to test services that have no dependencies, a simple instantiation of that class is sufficient to test the service in isolation. A good example is ` frontend/src/app/components/projects/current-project.service.spec.ts`
\ No newline at end of file
diff --git a/frontend/src/app/components/filters/query-filter/query-filter.component.html b/frontend/src/app/components/filters/query-filter/query-filter.component.html
index 1d3c6aa4bbb..c6c2d300694 100644
--- a/frontend/src/app/components/filters/query-filter/query-filter.component.html
+++ b/frontend/src/app/components/filters/query-filter/query-filter.component.html
@@ -1,87 +1,115 @@