> ## Documentation Index > Fetch the complete documentation index at: https://docs.noxus.ai/llms.txt > Use this file to discover all available pages before exploring further. # Filters and Drill-Downs > Pick the period, time zone and grouping, filter a board, and move from a number to what is behind it Every board, and the Analytics tab of every flow, agent and knowledge base, has the same filter bar above its widgets: the period, the grouping of its charts, and the **Filter** menu. What you pick there applies to every widget on the page. ## Period Click the dates to pick the period the page reads. ![The period menu, with billing cycles, named periods, Custom and Timezone](https://mintcdn.com/spot-16018069/qcCmJ9ZudE0c1m5y/images/analytics/period-menu.png?fit=max\&auto=format\&n=qcCmJ9ZudE0c1m5y\&q=85\&s=fedc85e65fa61d9aa75ed7f69ac67b0c) | Period | Covers | | :- | :- | | **Current billing cycle** | This calendar month in UTC, up to the end of today, so usage made while the page is open is counted | | **Previous billing cycle** | Last calendar month in UTC | | **Today**, **Yesterday** | One day, from midnight in the picked time zone | | **Past 7 days**, **Past 30 days** | The last 7 or 30 days | | **Past 3 months**, **Past 6 months**, **Past year** | The last 90, 180 or 365 days | | **Custom** | The dates you pick, at most two years | The period you pick is kept while you move between boards, and written into the page's address, so a link opens on the same dates. ## Time zone **Timezone**, at the bottom of the period menu, sets the zone a period of **two days or less** is read in: its days start at that zone's midnight, its hourly charts cut there, and times in tables show in it. Pick **Browser time**, **UTC** (the default), a listed city, or search for any other zone. The pick is kept in this browser. Periods longer than two days are always read in UTC. The **Timezone** row is then disabled, and hovering over it says so. Billing cycles are always UTC calendar months. ## Grouping The second button groups the over-time charts **by hour**, **by day**, **by week** or **by month**. Until you pick one, it follows the period's length: by hour up to three days, by day up to two months, and by week beyond. | Period | Grouping offered | | :- | :- | | One day | Hour | | Two to seven days | Hour and day, plus week at seven days | | 8 to 27 days | Day and week | | 28 days to two months | Day, week and month | | Longer | Week and month | ## Filter menu Click **Filter**, pick a dimension, search its values, select one or more and click **Apply**. Each active filter shows as a chip: click the chip to add or remove values, or its close button to remove it. ![The Filter menu on Flow activity, with Flow, Status, Started by, User and Model](https://mintcdn.com/spot-16018069/qcCmJ9ZudE0c1m5y/images/analytics/filter-menu.png?fit=max\&auto=format\&n=qcCmJ9ZudE0c1m5y\&q=85\&s=6283337ac2799c5315a1dc12ad307923) | Page | Filter by | | :- | :- | | **Usage and cost** | Flow, agent, status, started by, user, channel, model | | **Flow activity** | Flow, status, started by, user, model | | **Agent activity** | Agent, user, channel, model | | **Knowledge base activity** | Knowledge base | | **API usage** | API key | | **A flow's Analytics tab** | Run, status, started by, version, user, model | | **An agent's Analytics tab** | Conversation, user, version, channel, model | | **Settings › Analytics** | Workspace, plus flow, agent, status, started by, user, channel, model | A flow and an agent are both tools, so on Usage and cost picking some of each shows both. **Status**, **Started by** and **Channel** narrow AI Operations and model usage to the runs and conversations that match. A **Flow** or **Agent** chip holding a single tool has a button that opens that tool's Analytics tab over the same period. ![Flow activity filtered to one flow, shown as a chip](https://mintcdn.com/spot-16018069/qcCmJ9ZudE0c1m5y/images/analytics/filter-chip.png?fit=max\&auto=format\&n=qcCmJ9ZudE0c1m5y\&q=85\&s=0c701df78976f203e1ea33a643bdce4b) > [!NOTE] > > A widget whose number can't be narrowed by an active filter shows as not applicable instead of an unfiltered number. ## Drilling down Move from a number to what is behind it without leaving the page. > [tab] Click a value > > Click a flow, agent, user, model or knowledge base in a chart or a table to filter the whole page to it. A message says what the data is now filtered by, and the value is added as a chip. > > For example, click **Support ticket routing** in **Runs per flow** to see only that flow's runs, cost and failures. > [tab] Right click a value > > Right click a value for a menu of what you can do with it: > > * **Filter by this flow** (or agent, user, model): the same as a click. > * **Open flow analytics**, **Open agent analytics**, **Open knowledge base analytics**: opens its Analytics tab over the same period. > * **Open user analytics**: opens the **Users** board filtered to the member. > * **Open model analytics**: opens the **Models** board filtered to the model. > > ![The menu of a flow in Runs per flow: Filter by this flow and Open flow analytics](https://mintcdn.com/spot-16018069/qcCmJ9ZudE0c1m5y/images/analytics/drill-menu.png?fit=max\&auto=format\&n=qcCmJ9ZudE0c1m5y\&q=85\&s=4e88b463d5e0112c0e52b5e7775bfbb4) > [tab] Click a bar > > In an over-time chart, click a bar to narrow every widget to that hour, day, week or month, or drag across bars to narrow to a span. The period then reads the bucket you picked, and its grouping becomes finer. > > For example, click the tallest day in **Runs by how they started** to see that day by hour. ## Where a drill-down leads | From | To | | :- | :- | | A run's **Metrics** tab | The flow's Analytics tab, filtered to that run. See [Analytics in flows](https://docs.noxus.ai/platform/analytics/using/flows.md#a-single-run). | | A conversation's cost breakdown | The agent's Analytics tab, filtered to that conversation. See [Analytics in agents](https://docs.noxus.ai/platform/analytics/using/agents.md#a-single-conversation). | | A flow, agent or knowledge base's Analytics tab | Its board in Analytics, filtered to it, with **View in workspace analytics** | | A workspace or a tool in **Settings › Analytics** | That workspace's analytics, or the tool's Analytics tab, with a right click. See [Organization Analytics](https://docs.noxus.ai/platform/analytics/organization.md). | This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.